In some ways, I was pleased to read pediatrician Howard Bennett’s Washington Post article about bedwetting.   Parents, Dr. Bennett notes, should remember two facts about bedwetting: “First, it is a medical problem. Second, no one wets the bed on purpose.”   Both are absolutely true, and given the number of children punished and abused, and even killed, for wetting the bed, those are messages that need to be hammered home, as I do in Bedwetting and Accidents Aren't Your Fault.   I am also