Howdy! My wife and I got a two year old Chihuahua about two months ago and in the last week it has started peeing in our bed. We also have a 7 year old Boston Terrier that is completely house broken. They are both females and are both fixed. the Chihuahua, Sissy, was spayed a month ago. Since we got her she has always had a problem peeing inside. we have a doggy door that is always open and sometimes she goes out it and pees outside. We take her out in the morning, after work and before bed to go to the bathroom and she still pees in the house. If we catch her doing it we hold her real close to it, tell her " no!" and put her outside for a while.This peeing on the bed has me stumped. Why would she pee where she sleeps when the door to outside is wide open? Thanks in advance for any help!