I had my brother shoot my dog a week after he turned 1yr old. I had only killed 5 rabbits over him. Thinking that i would not hunt the rest of that year would remove that experience didn't help . He was gun shy . I want him back!!!! So to try to reclaim him ,we go out chasing rabbits with noise makers ,phone books and later on a starter pistol . In progress . Wish me luck .As for back tracking ,just keep it moving forward they'll learn .