Don't really sure.
I have a 17 weeks german shepherd puppy male. He always bites which we try to give a toy instead and praise for him chewing that instead of us, however he has started to show his teeth and growl and me, if I try to get him from the back of the chair ( where the wired are), if I don't leave him there, which I dont he will bite me, and keep biting until I get him out. Then he will jump at me and keep biting.
I have tried everything but I'm not sure what to do. I have blocked off the back of the chair so he can't get there, but sometimes he will keep biting until I have to put him in his crate so he can calm down.
If I tell him no he bites me harder, I know he is teething and had already lose 3 baby teeth, and adult ones are growing through. But he doesn't stop even when he has drawn blood, if I say anything he just gets worse. What can I do. He has started nipping the children now, and my 16 year old gets mouthed until he has had enough and bites her hard. Any help would be good before he really hurts someone. He has bit my finger which left a long cut that bled for hours.