... that puppies bite, but he bites so hard it breaks the skin. When he plays, he bites and I tell him "No" and he continues to bite. Or if he gets into something he's not supposed to and I go to get it out of his mouth, he growls at me and shows his teeth and tries to bite me. At lot of times when I fuss at him for bad behavior, he barks at me and growls and shows his teeth. He eats absolutely everything and gets into everything. He climbs into our kitchen chairs and gets on when table, he goes through the trash cans, so we had to get trash cans with lids. He's very mean towards younger kids, he circles my niece and and jumps on her and he's bigger than her so it usually knocks her down. He jumps on everyone hat walks in and he's very protective and gets jealous when the attention isn't given to him and it's given to someone else. I've tried everyhing and my biggest concern is his biting and jumping and being so rough with younger children, is this normal puppy behavior? Is it something he will grow out of? I'd hate to get rid of him if he bit my niece