It wasn't a long layoff. He had a little over a year off. This dog was a smart dog who had a rock solid built. His first bite will usually be on top of the muzzle and it'll pretty much be the end of their mouth. Then he'll doa them with head bites and ear holds. He was a 3xw,3xw(OTC),1xd,1xldg. So 8x in the box, he (dog)knew and some of us knew it was time for him to retire. All of his keeps were exactly the same. So yes I believe it was because he masterbated too much. His body wasn't as solid like before, his mouth got soft, and his mind was on getting off.