The 3-3-3 rule
Rescue dog professionals use the 3-3-3 rule as a rough timeline for what adjustment looks like. It is not exact, but it helps set realistic expectations.
3 days
to decompress
3 weeks
to learn the routine
3 months
to feel at home
3 days: decompression
Your dog may be shut down, overwhelmed, or anxious. They might not eat, might hide behind furniture, or might just sleep. Some dogs pace or pant. Others freeze in a corner and barely move. This is stress, not a personality trait. Give them space. Keep the house quiet.
3 weeks: learning the routine
Your dog starts to understand when meals happen, when walks happen, and where they sleep. They begin to relax. You might see the first tail wag, the first playful moment, or the first time they choose to sit near you. They are testing the waters. Keep the routine consistent.
3 months: feeling at home
This is when you meet the real dog. They feel safe. They know the routine. They trust you. Their true personality comes out. The dog you see at three months is often completely different from the dog that arrived on day one. More confident, more playful, more affectionate.
The 3-3-3 rule is a guideline, not a deadline
Every dog adjusts at their own pace. Some settle in days, others take longer than three months. The timeline is there to remind you that progress is happening even when you cannot see it yet.
What to expect in the first few days
None of these things mean something is wrong with your dog. They are normal stress responses from a dog adjusting to an entirely new world.
- ✓ Not eating. Many dogs skip meals for the first day or two. Their stomach is in knots from the stress and the journey. Do not panic. Offer food and water, then walk away. They will eat when they are ready.
- ✓ Diarrhea. Stress diarrhea is extremely common. New food, new water, new environment. It usually clears up in a day or two. More on when to worry below.
- ✓ Hiding. Under the bed, behind the sofa, in the corner. They are looking for a safe, enclosed space. Let them have it. Do not drag them out. Sit nearby and just exist. They will come to you.
- ✓ Scared of everyday things. The TV, the washing machine, stairs, hardwood floors, cars, the doorbell. Many rescue dogs have never been inside a house before. Everything is new. Introduce things slowly and let them investigate on their own terms.
- ✓ Accidents in the house. Even housetrained dogs may have accidents the first week. They do not know where the door is. They do not know how to tell you they need to go out. Take them outside frequently, especially after meals and naps.
- ✓ Not wanting to walk. Some dogs freeze on the lead. They do not know what a pavement is, or they are overwhelmed by traffic noise. Keep walks very short and close to home at first. Build up gradually.
Diarrhea in the first few days is completely normal
Stress, a new diet, and different water can all upset their stomach. It usually resolves on its own within 24 to 48 hours. If it lasts longer or contains blood, call your vet.
Practical tips for the first week
Keep a consistent routine from day one
Same feeding times, same walk times, same bedtime. Predictability is the fastest way to help a rescue dog feel safe. Start the routine you intend to keep.
Keep the house calm
No parties. No visitors. No excited introductions to all the neighbours. Your dog needs a quiet, predictable environment. Ask friends and family to wait at least a week or two before visiting.
Set up a safe space
Put their bed in a quiet corner, away from foot traffic. A crate with the door left open can work well too. Add a blanket and a water bowl nearby. This is their retreat when things feel overwhelming.
Establish a routine early
Same feeding times, same walk times, same bedtime. Dogs thrive on predictability, and rescue dogs especially so. A routine tells them the world makes sense and they can rely on it.
Let the dog come to you
Resist the urge to constantly pet, cuddle, and pick them up. Sit on the floor nearby. Talk softly. Let them approach you when they are ready. Forcing affection on a stressed dog can make things worse.
Use the garden
If you have a garden, let them explore it. It is a controlled, safe outdoor space where they can sniff, relax, and start learning that outside is not scary. Always supervise until you are confident in your fencing.
Go slow with other pets
If you have other animals, introduce them gradually. Use gates or separate rooms at first. Let them sniff under the door before meeting face to face. Do not force a friendship. It will happen on its own timeline.
No visitors for the first two weeks
It is tempting to show off your new dog to everyone, but too many new faces too soon adds stress. Let your dog bond with their immediate family first. There will be plenty of time for introductions later.
When to call the vet vs. when it is just stress
It can be hard to tell the difference between normal stress behaviours and something that needs medical attention. Here is a simple guide.
Probably just stress
- ✓ Not eating for the first 24 to 48 hours
- ✓ Soft stool or diarrhea for a day or two
- ✓ Panting, pacing, or whining
- ✓ Hiding or wanting to be alone
- ✓ Sleeping more than usual
Call the vet
- ! Not eating for more than 48 hours
- ! Refusing to drink water
- ! Diarrhea lasting more than 48 hours
- ! Blood in stool or vomit
- ! Lethargy combined with loss of appetite
- ! Discharge from eyes or nose
When in doubt, call your vet. It is always better to check and have it be nothing than to wait too long. Register with a local vet before your dog arrives so you have somewhere to go if needed.
Remember what they have been through
Your dog may have lived on the streets. They may have been in a public shelter where dogs were crammed into concrete pens. They may have never been inside a house, never walked on a lead, never heard a television. Then they were put in a van and driven across Europe for two days.
Everything in your home is new. The smells, the sounds, the surfaces, the people. Even kindness can be confusing if they have not experienced much of it.
Give them grace. The first week can be messy, frustrating, and emotional. You might wonder if you made the right decision. You did. It gets better every single day. The dog curled up on your sofa in three months will be worth every difficult moment this week.
Frequently asked questions
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