Two doctors are waiting for an elevator.
Doctor 1: Are you going to the hematology conference today?
Doctor 2: I don't know. What’s being presented?
[Elevator door opens and the two doctors enter; there are three lay people in the elevator. The dialogue continues as the doors close.]
Doctor 1: Dr. Carter is presenting a case... It’s that lady with the brain tumor, Mrs. Oswald. They are trying to figure out why the chemo is going so badly.
Doctor 2: That should be interesting. Carter never present unsuccessful cases. He only presents the cases he’s successful at.
Doctor 1: When he has one! [Both doctors laugh derisively.]