Yo-yo Ma and Buotros Boutros Ghali go out for lunch at a restaurant in New York. The waiter comes to take their order. "I'll have the mahi-mahi." says Yo-yo.

The waiter then turns to Boutros Boutros, "And Your Excellency?"

In response, he asks, "How's the couscous?"

The waiter replies, "So-so."