Most of us don't remember, but many years ago doctors used to make house calls. That is, they would actually come to your house with their little black bag, and they would examine you. One day a man took deathly ill, and his wife called the doctor and the doctor came out to the house.

When he walked in, the wife told him that her husband was upstairs. He told her to wait there; he went upstairs; was gone for a little while; after a few minutes came down and asked for a screwdriver. She gave him one. He went back upstairs; several minutes later he came back down and asked for a can opener. She gave him that.

He went back upstairs and shortly thereafter he came back and asked for a hammer and a saw. Well, finally the worried wife couldn't stand it any longer and she said, "Doctor, please…