Some jokes, even bad ones, are so perfect that you know that you have been given them from on high, and that no one else in history will realistically ever have this chance again. When I was at university I had a friend who was going to be a doctor, and they locked him up one night in the anatomy department. He was telling me this story, and about how he couldn't get out, and I said: "Since it was the anatomy department, you should have used a skeleton key." He bought me a drink on the strength of that.

yours, Peter T.