Last year at about this time I burned the top of my foot. It was very painful and looked really bad, and so I went to see Dr A, my dermatologist. He examined the wound and asked me how it had happened. For some reason I was too embarrassed to tell the whole truth, and so I was rather vague. ”Oh, it was just a kitchen accident.”, I said. ”Well”, he said, “whatever you did, you certainly got yourself a nice little third degree burn.” ”Oh dear, what will you do...