My dog is a 2 yr old Shih Tzu. She is such a good dog but sometimes she goes potty on my sons bed, and not on her puppy pad. I can never get her to poop on the pad but she will pee, please help me I have tried everything ,thanks.

There is something she is not pleased with about your son. Does he pay lot of attention to her ? Does he tease her ? Try finding this out and you may stop the defecating on your son's bad. That is a very bad dirty habit (especially when you have to clean it up !)

Ms tickle