my dog lost his human privledges about a month ago, which means he can't stay in the house at night, out to the garage with him, and it has worked it seems, he's been a little better about not tearing stuff up. anyways, we have a cat as well who always sleeps out in the garage (he has a house with steps attached to the wall) my dog has always hated the cat, but now he'll scratch at the door to let me know the cats still outside, I put the cat in the garage and everyone's content, guess he just can't be by himself