This is my second attempt at retriever training. I have a 4.5 month old puppy who has been doing great. he is crazy for birds, has been conditioned to gunfire, and is doing fantastic on obedience. He as always been crazy for retrieving, up until about two weeks ago. That's when i had my first refusal to go. I imagined it was because i had been working on steadiness since he started treat training, and he was scared to go when he wasn't supposed to even if i gave him the command to go. Since then, I have had at least one refusal per session. This morning, he refused to go on all retrieves, including fun bumpers. I let my temper get the better of me and tried to force him to fetch on a retrieve. He has since acted like he had no drive whatsoever. did i ruin my pup? Is there anything that I can do to get him to start retrieving again? I don't want to have to, nor can I afford to get another dog.