As weird as this may sound...do you have any men living in the house that might "miss" when they use the toilet. If he smells the pee he might be marking some territory. I know that we had that problem when my little nephew was here. Just like if Boo smells another dog's pee in the yard he has to go on top of it, and when we go out he follows my lab around waiting for her to go so he can cover up her scent. |