Nope his behavior won't change, its just really sad for him to be so neurotic I know he is miserable at times. I had my vet give him Prozac and that has done wonders....its like he is finally able to relax. Just like people sometimes animals have some sort of brain chemistry which isn't working properly. It was just very frustrating for a long time because no amount of training or exercise helped. We can't have people over because he looses his mind in an excited fit, not just normal excitement people leave bleeding and bruised. Sometimes ya just have to accept things and move on. 