when someone is about to leave, pick him up so he can't bite anyone, or put him in a nother room.
Or
place a leash on him and make him sit next to the front door. then have someone pretend to leave. If he makes a move to bite them give him a little snap on the leash and say no, and put him back in the sit position. as soon as he sits and stops trying to go after the person tell him 'good boy' and give him a treat. do this every time until he gets it.
__________________ Kellie  and  Morgan |