When it comes to anesthesia something to think about with pets, personally with my dog, his will so strong, his personality so stubborn that when he was getting his teeth cleaned the vet said they had to give him a higher dose of anesthesia. He would not go under. As a result our dog almost died. It was totally irresponsible for the vet to do this. My dog recovered, thank goodness. I would say our dog is emotionally intelligent and stubborn as hell. Maybe with anesthesia think about anxiety levels of the patient as well. Personally my experience with anesthesia, the first time I went under, I was in a white room or white space. This was in 1995. I was conscious, but with no body, just in this plane white space and in total peace.