I have a problem that maybe somebody can help me with. I can't stop stop barking, snarling and biting at a lot of different things with wheels. Trash carts, bicycles, grocery carts, even old ladies using walkers with wheels. I try to chase the mail man in his truck and go crazy over the trash trucks. Current problem is that where we're staying in Florida, everybody has a golf cart (even my humans) and I bark at them and try to chase them. My humans say that my barking/snarling problem is the only thing keeping me from qualifying as a therapy dog. Can I be helped?