I wont argue about what an how, the dog isnt useing the nose, when its needed...if it has one. When the vet done the smellin test, was the dog able to see the stuff that it supposedly smelled? Like dogs learn to look an smell together. I am working a setter here that I believe is deaf, or darn close to. But she has learned being with other dogs how to accomidate the loss or no hearing booger she has going on...when she looks at me will come running, if she is going away or past me, where she cant she, I can holler, or sing to her, blow whistle, shoot gun, honk truck horn, man all sorts of things, and I get no response, or reaction out of her. everything in this situation will be ok, because everything works but her ears. She is still a trainable dog. The nose not working is a major concern, the vets arent as smart as they seem to be in different circumstances. I would say this could be a time when book smart, an not street smart plays a roll. Unfortunately. Jonesy