A psychology instructor had just finished a lecture on mental health and was giving give an oral quiz to the freshman class.
Speaking specifically about manic depression, the instructor asked, “How would you diagnose a patient who walks back and forth screaming at the top of his lungs one minute, then sits in a chair weeping uncontrollably the next?”
A young man in the rear of the room raised his hand and answered, “A basketball coach?”
This joke is included in the Black Book of Jokes. You can order it from here.