Our Aussie is a little over 2 years old. He has destroyed alot of things including kid's toys, air conditioner cover, grill cover, apple trees, and other trees. He completely obliterated our apple trees which has been there for over a year. He nips at anyone he does not know. We had church kids next door that would throw rocks at him while he was in his cage. He tries to bite our vet. He is very aggressive. My wife wants me to find a new home for him. I don't know what to do with him. We are worried what he will do next. We used to only put him in his kennel at night or when the church kids come. What should we do?