I was one of the last if not the last patient the dentist who took out my wisdom teeth gave general anesthesia to (at my request, he was normally only doing local). Afterwards, the whole dental office staff (and my mother!) entertained themselves with having conversations with my incoherent self as I came out of the anesthesia. Apparently, I declared that I was ruined and would never be able to sing opera again (point in fact, I had never sang opera before).