My german shepherd Hunter has become very protective of the house anytime someone he doesn't know rings the doorbell and comes in he goes nuts barks and growls like crazy. I have a prong collar and I yank it and make him sit and he still won't stop. Or if he does stop after a while and the stranger comes up to him he barks and almost tries to bit. One time someone came over and he was barking like crazy and jumped on her. I really don't know what to do I need help!! He is 6 months old. I got him at four weeks and he has always been a little scared of people but he is getting better with that. But getting more protective of the house.
I would love your help!
Thank you so much
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