Hi, there I've been doing my research on different sites and came across this one..so heres my situation me and my husband just adpoted a 18 month old female Am Staff from the humane society (said perfect family dog on her cage) we wanted a same age compainion for our male Sheppard mix and found Gemma. She is VERY mouthy and rough plays alot our w of Shepard who is usually full of spunk gets fed up easily w her spirit causing him to hide in his crate, she also is rough w me for instance out of the blue i will be picking some thing up off the floor and she will run up playfully nipping and mouthing my hands but very hard..when I try and correct her behavior by sharply saying NO! She seems to get more hyper (BULL IN THE CHINA SHOP CRAZY) jumping on my chest and mouthing harder...so then I cage her. WHAT AM I DOING WRONG??? LOL she listens to my husband just fine well for the most part, can I mention we have only had her for a week so I want to hear what I can do to show her whos boss around here...suggestions????