This is a joke that pokes fun at the legendary egos of doctors.
All right, I got a joke for ya...This guy goes to heaven, and finds all sorts of wonderful things. He meets lots of dead friends and family and just has a great time. Then he gets hungry and goes to the Heaven cafeteria, where he grabs a tray and gets in line. While he's waiting, this guy with a long beard, dressed in a white coat and wearing a stethoscope around his neck, shoves his way into line ahead of them. The man turns to the guy behind him and says, "Who does that guy think he is?" The other man answers, "Him? Oh, that's God. He thinks he's a doctor." Show it to your doctor friends!