Does anything scare Zoey at all? Have you tried coins in a can? Put some pennies in a tin can, and shake it vigorously when he does something wrong. Hopefully it 'scares' him into learning that a certain action, be it biting, barking, or running away, is BAD.
Good luck, it may be a bit harder to train Zoey because he is older, but I think there's still some hope left! |