"How would you advise a mother who was pregnant with her fifth child based on the following facts? Her husband had syphilis. She had tuberculosis. Their first child was born blind. Their second child died. Their third child was born deaf. Their fourth child had tuberculosis."
"The mother is considering an abortion. Would you advise her to have one?"
In view of these facts most of the students agreed that she should have an abortion.
The teacher then announced, "If you said 'Yes' you would have just killed the great composer Ludwig van Beethoven!"