In the middle of the 1930s Mayor LaGuardia was faced with a very difficult problem. A high-ranking German diplomat was due for a state visit in New York. Shocked and angered by the recent anti-Jewish laws of the Nazis, a great number of New Yorkers threatened to do bodily harm to the diplomat. The mayor himself abhorred the Nazis, but it was his sworn duty to prevent violence.
He solved the problem by surrounding the Nazi representative with a bodyguard of police. They all had one thing in common – they were Jewish. The joke embarrassed the Nazis and caused enormous laughter. But it also resolved a potentially dangerous situation.
— from “Speaker’s Treasury of Anecdotes About the Famous”, by James Hume