The short answer
Your new Winnipeg rescue dog will likely be shut down or hyper-vigilant for the first three days, skip food in the first 24 to 48 hours, and act nothing like the personality the rescue described. None of that is a problem. Set up a quiet decompression space, keep the household calm, and take short leash walks timed for the prairie weather (very short in winter cold snaps, early or late on summer hot days). Call a vet if your dog has eaten zero food at 48 hours, has not urinated in 24 hours, shows lethargy past day three, or has vomiting or diarrhoea longer than 24 hours.
The 3-3-3 rule explained
The 3-3-3 rule is the decompression timeline most rescue dogs follow. It is not a guarantee, and individual dogs run faster or slower, but it captures the curve well enough that Winnipeg adoption coordinators use it as the default expectation when placing a dog. The ASPCA dog care guidance and American Animal Hospital Association (AAHA) client resources describe the same decompression pattern.
- 3 days to decompress. The dog is overwhelmed. Expect shutdown (sleeping a lot, hiding, refusing food) or the opposite (pacing, panting, whining, restlessness). Either is normal. Behaviour is muted or exaggerated, but neither version reflects the real dog.
- 3 weeks to settle. The dog begins to learn your routine. Eats at predictable times. Greets you at the door. Starts showing preferences for sleeping spots, toys, and people. Some quirks emerge that the rescue or foster never mentioned. Trust is building.
- 3 months to bond. The dog's real personality emerges. The playful one starts playing. The cuddly one starts cuddling. The reactive one shows what triggers them and you can finally work on it. This is the dog you actually adopted.
Set up the decompression space before pickup
The decompression space is the single most important setup decision you make. Pick the quietest part of your home. A spare bedroom corner, a designated crate area, or a covered bed in a low-traffic hallway all work. A downtown Winnipeg apartment with no interior door is the hardest version of the first week, but even there you can carve out a corner with a crate, a blanket, and a barrier.
Decompression space checklist:
- A crate (open door) or covered bed the dog can retreat into. The covered option matters; dogs feel safer in den-like enclosed spaces.
- Water bowl within reach.
- One or two quiet chew toys (a frozen Kong, a rubber chew). Skip squeaky toys and battery-powered toys for the first few days.
- Soft bedding the dog can rest on.
- Away from foot traffic, the front door, and noisy appliances (dishwasher, washing machine, TV).
- If you use a crate, leave the door open at first. Crating a stressed new dog with the door shut can backfire; let the dog choose to use the crate before locking the door.
Keep the household quieter than usual for the first three days. No vacuuming, no loud TV, no visitors. The dog needs predictability, not stimulation.
Why your dog is shut down (and why it's fine)
Shutting down is a survival response, not a sign of unhappiness or a behaviour problem. Your dog just left a familiar environment (foster home, shelter kennel, northern transport, or stray situation) and arrived in a place where everything smells, sounds, and looks unfamiliar. The dog's nervous system is doing one job: assess whether the new environment is safe. Until that assessment finishes, the dog will choose to sleep, hide, or stay still and observe.
The opposite version of shutdown is hyper-vigilance: pacing, panting, scanning, vocalising. Same stress, different expression. Some dogs externalise their stress; others internalise it. Neither version is the “real dog,” and you cannot tell which one you have until week two or three.
The signs that matter are not how much you see of the dog's personality. The signs that matter are eating, drinking, urination, and defecation. If those four things are happening (even at unusual hours), the dog is fine.
Prairie climate: winter and summer realities
Winnipeg's climate is the opposite of mild. Winters routinely drop below -20°C, with cold snaps reaching -30°C to -40°C wind chill several times most winters, and summers can hit +30°C on a humid afternoon. Both extremes shape how week one looks. The rule is the same in either direction: walks happen, but they are short and carefully timed, not the long exploratory loops you might do in month two.
Winnipeg winter walks (week one):
- -10°C to -20°C: A short 10 to 15 minute loop is fine for most dogs. Watch the paws for ice balls between toes and brush them off if they form.
- -20°C to -30°C: Drop to five minutes per outing, more frequent potty trips if needed. Booties help if the dog tolerates them. Limited-coat breeds (Greyhounds, Pit-type mixes, short-coated terriers) need a coat at this range.
- -30°C to -40°C wind chill (a normal Winnipeg January reality): Yard potty only. Skip the walk. Burn energy indoors with sniff games, a frozen Kong, or a stair routine if you have one. Frostbite on paws and ear tips can develop in minutes at these temperatures.
- Watch for shivering or a lifted paw. Either means head home now, not in five more minutes.
- Salt and ice-melt on Winnipeg sidewalks can irritate paws. Rinse paws with warm water when you come inside.
Winnipeg summer walks (week one):
- Walk early morning before 9 a.m. or late evening after 8 p.m. Avoid 11 a.m. to 6 p.m. on hot days.
- The seven-second test: press the back of your hand to the sidewalk. If you cannot hold it for seven seconds, the pavement is too hot.
- Carry water. A collapsible bowl in your pocket is enough.
- Winnipeg summers bring heavy mosquito pressure, including documented West Nile virus risk in Manitoba. Use vet-approved insect repellent for dawn and dusk walks, and ask your Winnipeg vet about heartworm and mosquito-borne prevention at the baseline visit.
- Heat stroke signs (heavy non-stop panting, drooling, glassy eyes, stumbling) are emergencies. Go straight to a Winnipeg emergency vet.
- A new dog has not yet learned your yard's shade spots or the water bowl location, so do not assume they will self-regulate outside in the heat. Supervise.
The practical implication of prairie weather is that the first week needs more indoor energy outlets than a mild-climate adoption would. A frozen Kong, a scatter feed in the yard, a 10-minute sniff game in the living room, or a slow-feeder bowl all burn surprising amounts of mental energy without long outdoor exposure.
Day-by-day playbook
Day 1: arrival
- If you drove the dog home, take them straight to the yard or a quiet patch of grass to relieve themselves before going inside.
- Walk the dog through the front door on leash. Show them the decompression space first. Let them sniff and investigate at their own pace.
- Offer water. Offer a small meal. If they do not eat, do not push. Leave the bowl down for 15 minutes, then pick it up.
- One short, quiet leash walk on a side street near home. Five to ten minutes is plenty (shorter if it is a deep-winter or peak-summer day). No off-leash zones, no busy parks, and definitely not Assiniboine Park.
- No visitors. No other pets' free access. Lower household noise.
- Bedtime: let the dog choose where to sleep. If they want the crate, great. If they want the floor near the bed, also great.
Day 2 to 3: decompression
- Most dogs settle into a pattern by day two. Either sleeping more than expected (shutdown) or moving around restlessly (hyper-vigilant). Both are fine.
- Stick to a predictable feeding schedule. Same time, same spot, same food.
- Short leash walks once or twice a day, quiet routes. In winter, time them for the warmest part of the day if temperatures are below -20°C. In summer, push them to early morning or after sunset to avoid mosquitoes and heat.
- If you have resident dogs, keep them separated. Scent-swapping with a soft cloth helps; rub the cloth on one dog's cheek and leave it near the other dog's bed.
- If the food bowl is untouched at 48 hours, call the rescue. Try warming wet food. If still nothing, escalate to a Winnipeg vet.
- Sit in the same room with the dog, doing something boring (reading, scrolling your phone). Boring presence builds trust faster than active engagement.
Day 4 to 7: emerging
- By day four or five, most dogs start showing more personality. They might wag their tail when you come home, follow you between rooms, or solicit a scratch.
- Longer leash walks become possible. Quiet residential streets in neighbourhoods like Wolseley, River Heights, or Fort Garry at off-peak hours work well. Skip the Assiniboine Park paths and the busy Forks waterfront for one more week; the pedestrian and cyclist density there is a lot for a still-decompressing dog.
- Still no off-leash zones. Still no dog parks. Still no dog-dense areas.
- Resident dog introductions: short, leashed, calm meetings can start by day three or four if both dogs are showing relaxed body language. Free interaction by week one only if both dogs are clearly comfortable.
- Resident cat introductions: keep the dog leashed indoors and use baby gates. No chasing, ever, even in play. Cat introductions take weeks, not days.
- End of week one: most dogs are sleeping through the night, eating predictably, and starting to know where their water bowl, leash, and bed are. That is the goal for week one.
Signs of stress vs. signs that need a vet
Most first-week behaviour that looks alarming is just stress. A handful of signs cross the line into vet-call territory. Know the difference before you need it.
Call a vet right away if:
- Zero food eaten in 48 hours (sooner for puppies, seniors, and small breeds).
- No urination in 24 hours, or visible straining to urinate. Urinary blockage can become a true emergency, especially in male dogs.
- Vomiting or diarrhoea longer than 24 hours, or any blood in vomit or stool.
- Lethargy that continues past day three (dog is awake but unresponsive, not just sleeping a lot).
- Visible injury, laboured breathing, persistent coughing, or extreme weight loss.
- Suspected frostbite (pale, hard, or cold paws or ear tips after a winter outing) or heat-stroke signs in summer (non-stop panting, drooling, glassy eyes, stumbling).
- Aggressive resource guarding that emerges around food, toys, or sleeping spots, especially if it escalates to bites. This is a trainer or veterinary behaviourist call, not a wait-and-see.
Winnipeg has 24-hour emergency veterinary care available year-round. Ask your adoption rescue or your daytime vet which after-hours clinic they currently recommend for your part of the city. We deliberately do not name specific clinics here because emergency availability changes; your rescue or daytime Winnipeg vet will give you the current right answer. Adopters who came through the Winnipeg Humane Society can ask the shelter directly for a current emergency referral.
Winnipeg rescue paths: what to expect
The Winnipeg dog rescue scene splits roughly into four channels, and knowing which path you went through helps set realistic expectations for week one.
Shelter-based same-day adoption through the Winnipeg Humane Society is the dominant local channel. Dogs live in the shelter environment, which is louder and more stressful than a foster home, so the personality the shelter sees is often more guarded (or more amped up) than the dog's real personality. Your first week is genuine discovery. The dog you bring home may look quite different by week three. A quiet shelter dog sometimes blooms into a confident, playful family dog; an outgoing shelter dog sometimes turns out to be reactive once they leave the shelter environment. Patience matters more on this path because the real dog may not appear until week three or four.
Foster-based rescues include D'Arcy's Animal Rescue Centre and Manitoba Mutts Dog Rescue, both of which place dogs from home environments. If you adopted from one of them, the first week looks more like verification than discovery: the foster has documented behaviour notes and your dog's personality will mostly match what the foster described. The dog will still need a few days to decompress because the environment is new, but the surprise factor is lower and the foster usually stays available for week-one questions.
Breed-specific rescues like Hull's Haven Border Collie Rescue work with one breed only and tend to know that breed's decompression pattern very well. If you adopted a Border Collie or BC-cross through Hull's Haven, expect the rescue to give you breed-specific week-one guidance (BCs need a lot of mental decompression, not just physical rest) and to stay involved through the first few weeks.
One Manitoba Mutts-specific caveat: Manitoba Mutts runs a transfer program for northern reserve dogs alongside its local placements. Northern transfer dogs carry an extra layer of adjustment stress on top of the normal rescue decompression. The transfer can involve hours of travel, multiple handlers, and a complete loss of any previously familiar environment. These dogs can take two to three weeks to start showing meaningful decompression instead of the usual three days. If your Manitoba Mutts dog came through northern intake, your three-day window is really a three-week window. Watch eating, drinking, and elimination on the same schedule, but expect the personality emergence to run much slower.
None of these paths is better. Same-day Winnipeg Humane Society gives you a dog the same afternoon with less behavioural history. Foster-based gives you more pre-adoption information but smaller selection and longer adopter-matching timelines. Breed-specific gives you deep breed expertise on a narrow inventory. All produce great matches; the first-week behaviour you should expect just runs different timelines.
Leash, harness, and crate routine
A new rescue dog in an unfamiliar home is at the highest risk of slipping a collar or door-bolting. Two simple rules cut almost all of that risk:
- Double-point leash setup for the first two to four weeks. Attach the leash to both a properly fitted martingale collar and a harness with a back clip. If one fails, the other holds. This is the single most-recommended week-one gear setup by Winnipeg rescues, and it has prevented countless lost-dog situations.
- Closed door, closed gate, every time. Until the dog reliably stays when the front door opens (a week three or four behaviour, at best), assume the dog will bolt. Train other household members to check before opening exterior doors. If you have a back gate, padlock it for the first two weeks.
On the crate question: many rescue dogs are crate-trained, but many are not, and some have negative crate associations from kennel life. Use the crate as a passive option in week one. Leave the door open. Toss treats inside. Feed meals near or inside it. Do not lock the door until the dog is voluntarily resting inside with the door open. Forcing crate confinement on a stressed new dog is the most common cause of crate aversion that persists for months.
The International Association of Animal Behavior Consultants (IAABC) maintains a directory of certified dog behaviour consultants for behaviour concerns that persist past the first two weeks (separation anxiety, reactivity, resource guarding, escape attempts).
Winnipeg off-leash and Assiniboine Park: the wait list
Winnipeg has strong urban off-leash access for a prairie city. Charleswood Dog Park, Kilcona Park, Little Mountain Park, Maple Grove Park, and a handful of smaller fenced zones around the city all draw daily dog crowds. Assiniboine Park and the Forks waterfront are on-leash but extremely high-stimulation. None of these are appropriate in week one.
Assiniboine Park deserves its own warning. It is one of the most pleasant walks in Winnipeg and a tempting place to take a new dog. It is also one of the worst week-one choices in the city. The paths are dense with joggers, cyclists, stroller traffic, off-leash incidents (despite the on-leash rule), and high pedestrian volume during weekends and Festival du Voyageur. A new rescue dog who has been home for three days has nothing to handle that level of stimulation. Save Assiniboine Park for week three or four at the earliest, and even then start at a quiet off-peak hour on the less-trafficked perimeter paths.
A new rescue dog at Charleswood Dog Park or Kilcona on day three is a recipe for an escape, a reactive incident, or a lost dog. The dog does not know you, does not know the area, does not know your recall cue, and is surrounded by dozens of unfamiliar off-leash dogs. Even confident, well-socialised dogs need to decompress and bond before they can handle that level of stimulation. A reactive or fearful dog needs even longer.
One Winnipeg-specific risk to know about: the Charleswood and Tuxedo neighbourhoods, along with the Red River corridor and parts of the Assiniboine Forest, have a documented urban coyote population. Coyotes are most active at dawn, dusk, and overnight, and they will follow or test small dogs. Keep your new rescue on leash near any of these areas until you know the dog's recall, prey drive, and reaction to wildlife. Many Winnipeg adopters who experienced a coyote encounter say it happened on what they thought was a routine walk through a familiar suburb.
A reasonable Winnipeg off-leash progression:
- Week 1 to 2: Leash walks only. Quiet streets, quiet residential neighbourhoods. No Assiniboine Park, no Charleswood, no Kilcona.
- Week 3 to 4: Longer leash walks on quieter sections of Assiniboine Park at off-peak hours (early morning, weekday afternoons). Work on recall in your yard or a fully fenced private space.
- Month 2: If recall is reliable and the dog is calm around other dogs on leash, try a small fenced off-leash area at a quiet time. Many adopters use private rental yards as a stepping stone.
- Month 2 to 3: Less busy unfenced off-leash spots at quiet times. Stay close, recall often, leash up at the first sign of overstimulation or wildlife.
- Month 3+: Charleswood Dog Park, Kilcona, Little Mountain, and the busier off-leash zones, only when the dog reliably recalls under distraction.
Rushing this progression is the most common reason adopters report “sudden” reactive episodes or escape incidents that were not actually sudden; the dog was over threshold the whole time and finally lost their cool.
Browse adoptable dogs in Winnipeg
Winnipeg rescue dogs from the Winnipeg Humane Society, D'Arcy's ARC, Manitoba Mutts, and Hull's Haven all come with adoption support. Reach out to the rescue if first-week behaviour worries you.
See Available Dogs →The “dog hiding under the bed for 3 days” panic
Around day three, many adopters hit the same panic: the dog has been here three days and is still hiding under the bed or behind the couch. Is something wrong?
Here is the breakdown. Hiding for three days with eating, drinking, and outdoor potty breaks is normal. The dog is decompressing on the slower end of the curve and will come out when ready. Hiding for three days without eating is a vet conversation, not a behaviour question. Hiding for three days with eating but no urination is also a vet call.
The check you can do without disturbing the dog: leash the dog gently to take them out for a potty break (some hidden dogs will walk out for a walk even when they will not come out for food). Once outside, you can also do a basic visual check (gait, alertness, eye and nose appearance). Inside, mark food bowl levels with a sharpie, leave water out, and count outdoor pees and poops. If those three checks all show daily activity, the dog is decompressing and just needs more time.
The first vet visit
Schedule a baseline vet visit within one to two weeks of adoption, even if everything looks fine. This sets up the medical record with your chosen Winnipeg clinic, gives the vet a baseline weight and physical exam, and is the right moment to confirm spay/neuter status, review vaccination schedules, update microchip registration to your name and contact info, and discuss parasite prevention.
Manitoba has documented heartworm risk and rising tick prevalence, both tied to mosquito and tick exposure during the long prairie summer. Your Winnipeg vet can recommend the right prevention protocol; ask specifically about heartworm testing for any rescue dog whose intake history is incomplete (common with northern transfer dogs and stray-origin shelter dogs). For longer-term care logistics and adopter resources, see the best dog rescues in Winnipeg overview, which covers what each rescue offers post-adoption.
What NOT to do in week one
- Do not take the dog to Assiniboine Park, Charleswood Dog Park, Kilcona Park, the Forks, or any high-traffic park.
- Do not let visitors in to meet the dog. The household is enough.
- Do not introduce the dog to other resident dogs without a neutral first meeting and slow indoor integration.
- Do not let a new dog and resident cat have unsupervised interactions for at least two weeks.
- Do not lock the dog in a crate with the door shut if they have not voluntarily used the crate with the door open first.
- Do not change food brands abruptly. Transition over seven to ten days if you want to switch.
- Do not bathe the dog unless it is medically necessary. Save grooming for week two or three.
- Do not enrol in group training classes in week one. Wait two to four weeks.
- Do not punish stress behaviours (whining, pacing, accidents). Stress is not disobedience.
- Do not push long winter walks below -20°C or long summer walks at peak heat or mosquito hours. Match the walk length to the weather.
Frequently asked questions
What is the 3-3-3 rule for rescue dogs?
The 3-3-3 rule is a simple decompression timeline that most rescue dogs follow. Three days to start decompressing (often shut down, sleeping a lot, possibly not eating, or the opposite: pacing and hyper-vigilant). Three weeks to learn your routine, start showing more personality, and feel safe in the home. Three months to fully settle and reveal the dog you actually adopted. Most Winnipeg adopters say their dog finally felt like their real dog somewhere between month two and month three.
Is my rescue dog hiding under the bed for 3 days normal?
Yes. Some rescue dogs shut down completely in the first three days. They hide under beds, behind couches, in closets, or in their crate, and barely come out. Others do the opposite and pace, pant, or whine. Both are stress responses, not behaviour problems. The signs that actually matter are whether the dog is eating, drinking, and urinating or defecating outside. If those three things are happening, even at strange hours, the dog is fine and just needs time.
Is it normal for a new rescue dog to not eat?
Skipping food in the first 24 to 48 hours is common and normal. Use the exact same food brand the rescue used. Leave the bowl in a quiet spot. Try a small amount of warm wet food. Do not hover. If your dog has eaten zero food at the 48-hour mark, call the rescue or a Winnipeg vet. Healthy adult dogs can usually go 48 to 72 hours without major risk, but puppies, seniors, and small breeds are more vulnerable and should be seen sooner. Always check with a vet rather than waiting it out.
When should I take my new rescue dog to the vet?
Schedule a baseline vet visit within one to two weeks of adoption, even if everything looks fine. This sets up the medical record with your Winnipeg vet, gives a baseline weight and physical exam, and is the moment to confirm spay/neuter status, vaccines, and microchip registration. Go sooner if you see any of the following: no food at 48 hours, no urination in 24 hours, vomiting or diarrhoea longer than 24 hours, lethargy past day three, visible injury, blood in stool, or laboured breathing.
How do I set up a decompression space for my new dog?
Pick the quietest part of your home. A spare bedroom, a corner of the living room, or a designated crate area all work. Set up a crate or covered bed the dog can retreat into. Add a water bowl, a few quiet chew toys, and a soft blanket. Keep the area away from foot traffic, the front door, and noisy appliances. Most dogs will choose to sleep there even when given the run of the house. Decompression space is not punishment. It is the dog choosing where to feel safe.
Can I walk my new rescue dog in Winnipeg winter on day one?
Yes, but keep walks very short and time them carefully. If temperatures are below -20°C with wind chill, a five-minute potty walk on a quiet street is the right length, not a 30-minute exploration. Check paws for ice balls between toes and consider booties if the dog tolerates them. Watch for lifted paws or shivering and head home immediately if you see either. In a true cold snap (-30°C to -40°C wind chill, which Winnipeg sees several times most winters), let the dog relieve themselves in the yard and skip the walk entirely; indoor sniff games and a frozen Kong burn more energy than a frozen-pawed slog around the block.
What about Winnipeg summer heat and mosquitoes in week one?
On +25°C days walk early morning or after 8 p.m. when the pavement cools off. Touch the sidewalk with the back of your hand; if you cannot hold it there for seven seconds, it is too hot for paws. Carry water on every walk. Winnipeg summers also bring heavy mosquito pressure and West Nile virus risk, so dawn and dusk walks should include vet-approved insect repellent and Health Canada advisories should be checked during outbreak years. Talk to your Winnipeg vet about heartworm and mosquito-borne prevention at the baseline visit. Heat stroke signs include heavy panting that does not slow, drooling, glassy eyes, or stumbling; these are emergency vet visits, not wait-and-see.
When can my new dog go to Charleswood Dog Park or Kilcona off-leash?
Not in week one, and usually not in the first month. Charleswood Dog Park and Kilcona Park are two of the busiest off-leash zones in Winnipeg and they are too stimulating for a brand new rescue dog. A new rescue dog in an unfamiliar environment, surrounded by unfamiliar dogs, in an unfenced off-leash zone, is the highest-risk scenario for an escape or a reactive incident. Wait until the dog reliably recalls to you in your yard and on quiet leash walks, then build slowly through smaller fenced spaces before progressing to busy ones. The Charleswood and Red River corridor also have a documented urban coyote presence, which is another reason a brand new dog with no recall should not be off-leash there.
When can I introduce my new dog to my other pets?
For resident dogs, do a neutral first meeting (on leash, on a neutral street or park, not at home) before bringing the new dog through the front door. After arrival, keep them separated for the first 24 to 48 hours with a baby gate or rotated rooms. Short, leashed, calm meetings start day two or three. Free interaction by week one only if both dogs are clearly comfortable. For resident cats, keep the dog leashed indoors and use baby gates for at least the first two weeks. Never let a new dog chase a resident cat, even in play.
How does Winnipeg Humane Society same-day adoption differ from Manitoba Mutts or D'Arcy's ARC foster placement?
Same-day shelter adoption through the Winnipeg Humane Society gives you a dog the afternoon you choose them, but the personality you saw at the shelter may differ from the dog who emerges at home; shelter environments are louder and more stressful, so the real dog often appears by week three or four. Foster-based rescues like Manitoba Mutts Dog Rescue and D'Arcy's Animal Rescue Centre place dogs from home environments and give you a documented behaviour profile before adoption, so week one looks more like verification than discovery. Manitoba Mutts also takes in northern reserve transfer dogs, which means some dogs arrive with added travel stress on top of the normal adjustment curve. Neither path is better, but expectations should run on different timelines.
My Manitoba Mutts northern transfer dog seems extra shut down. Is that normal?
Yes, and it usually lasts longer than a typical rescue adjustment. Northern reserve transfer dogs often spend long stretches in transit before arriving in Winnipeg (multiple vehicles, foster stops, vet processing) on top of coming from environments very different from urban prairie life. Their decompression curve can run two to three weeks instead of the typical three days, and shutdown can be deeper. Eating, drinking, and elimination are still the markers that matter. If those three are happening, even slowly, the dog is decompressing on schedule. Stay in close contact with the Manitoba Mutts coordinator who placed the dog; they have seen this curve many times and can flag whether what you are seeing is the long-but-normal version or something worth a vet check.
How long until my rescue dog trusts me?
Real trust takes weeks. Early signs show up in week two or three: the dog approaches you when you sit down, settles near your feet, makes eye contact, takes treats gently from your hand, and stops flinching at sudden movements. Deeper trust (relaxed sleep in your presence, leaning into you, soliciting affection) often shows up around month two or three. Some dogs are reserved their whole lives, especially if they came from neglect or kennel-stress backgrounds. The bond is not measured by how affectionate the dog acts on day one.
When can I start group training classes with my new dog?
Wait at least two to four weeks. Group classes are useful, but a brand-new rescue dog in a room full of strange dogs and strange people is overstimulating in week one. Start with quiet at-home practice (name recognition, basic sit, settle on a mat). Move to one-on-one sessions with a fear-free certified Winnipeg trainer if you need help. Group classes are a week three or four step at the earliest. The exception is a puppy under 16 weeks, where puppy socialisation classes are time-sensitive and the rescue or your vet can advise on the right balance.
Can I have friends over to meet the new dog on day one?
No. Day one through three should be quiet household members only. Friends and visitors can meet the dog starting day four or five, briefly, one at a time, in a calm setting. Ask visitors to ignore the dog at first and let the dog approach if it wants to. No hovering, no reaching, no loud greetings. Big family gatherings, kids' birthday parties, and house parties are all reasons to push pickup back or to confine the dog to a quiet room during the event. Quiet households produce faster decompression.