Three Frenchmen were trying to define savoir-faire.

“If I go home,” said Alphonse, “and find my wife with another man, say ‘Excuse me’ and leave, that is savoir-faire.”

“No,” replied Pierre, “if I go home and find my wife with another man, and say ‘Excuse me, please continue,’ that is savoir-faire.”

“Au contraire,” said Jacques, “if I go home and find my wife with another man and say ‘Excuse me, please continue,” and he can continue, then he has savoir-faire.”