well i have a few problems with these puppies 1. they rip up things to shreds when they see anything on the ground. they have ALOT of toys also 2. They wont stop jumping on people.. people cant even come into my house! 3. not potty trained yet eh they are soo stubborn!! 4. biting. not just nipping everyone someone trys to pet them ( like me and my boyfriend ) they bite hands. and like to jump up and try to nip at faces ( not aggressivly though ) what can i do? more exercise? or what?