Normally well behaved dog pooped in my boyfriend's room, why?

Because being "well behaved" has nothing to do with knowing the rules of the home. Bringing a new dog in and letting him have full access to the entire home immediately is a mistake. I always assume the new dog knows zip about being in the home and go through a few days of training before she can wander about without me. Try this: Schedule-Confine-Supervise

Schedule- the feeding and potty times. An adult is fed twice a day. A puppy is fed four times a day up to 10 or 12 weeks, then three times a day through adolescence. They need to potty first thing in the morning, last thing at night, within a few minutes of every meal, and every few hours in between. The “in between” hours are calculated by their age in months: 1 month = 1 hour, up to 6 months/hours. So, a three month old puppy should be taken to potty every three hours in between the other scheduled times. When the dog/puppy is taken to potty, wait with him as he ‘does his business’ and then praise like crazy. The neighbors should be able to hear you.

Confine- the puppy or dog whenever it is not being watched. Confinement can be in a crate (especially at night), an exercise pen, or behind a baby gate in a very small and puppy-proofed room.

Supervise- the puppy or dog whenever it is loose in the home. This means having eyes on it, not on the TV. Play with the puppy, do a five minute training session, groom it, or just let it lie at your feet with a safe chew, but have it within sight at all times. If it squats then give a loud “NO” or “ACK” as you scoop and run to the appropriate potty spot.

Do not let the dog return to the accident spot until it has been thoroughly cleaned and then wiped with vinegar or a commercial enzyme product to remove all urine odor.

He seemed house trained? Well is he? Where did you get him from? A shelter? Maybe call the shelter and ask if he was completely house trained. He's only a year old and if he was on the street and then rescued or abandoned and hasn't been in a foster house. He probably isn't house trained. You may need to start all over and house train him. Start with crate training.

It may only be because he's in a new surroundings, was nervous got excited or was left in all day. If his bowel was soft or runny consider taking a sample to your vet. He could have worms. Always take a new pet to the vet for an initial exam. If the peeing in the house, not being able to control bladder continues he could have a urinary tract infection. Take a urine sample to the vet.

Dogs have a senses that humans can never understand, they seem to know whenever something isn't right or when they think someone is dodgy or something. It took my first dog 2 years to get used to my uncle because she really didn't like him for some reason. He was a nice guy and is very friendly with animals (especially dogs) but Beth (my dog) just didn't like him.

Dogs have feelings just like humans. It might be a case of your dog just not liking your boyfriend or he just doesn't feel comfortable with him.

But it could also be the cat because, one thing that is important to a dog is his/her territory. I know that dogs pee and poop in places to 'mark their territory' so your dog might have just been showing the cat that it was his territory.

Hope this helped :) but whenever you get a new dog it always takes a while for them to get comfortable with a new home and new owners, which also involves house training and behaviour control.

I'm guessing he was marking his territory. if the cat hangs out there then it probably smells like the cats room to him, so he might be trying to claim the room as his own or something.

next time you catch him trying to go to the toilet inside, say no sternly, and take him outside. when he goes outside, reward him with a treat.

also is he scared of your boyfriend? he might have had bad experiences with men before you adopted him.

maybe he got locked in or something ?