Hello, I have a 4 year old chihuahua who i've had since she was a puppy. Her name is Chloe. We have another dog named Chester who is a sheltie and they get along pretty well. Chloe really pisses me off because when i introduce her to a friend or anyone outside of our house she barks, bites, shrieks and screams and won't let anyone touch her. She has ALWAYS had the kindest treatment in her upbringing, in fact i think she might act like this because she is spoiled. She is a big baby and is actually really scared of everyone so it's like she has this passive aggressive behavior. How do i calm her down and not let her be frightened of everyone walking through my house? It's starting to affect some of my relationships with people. I've had them give her treats to be nice to her, take time to calm her down, but she always ends up still hating them. I'm at my wits end!!!!!