An American tourist

An American tourist was lunching in a restaurant in China where the specialty was duck.

The waiter explained each dish as he brought it to the table.

"This is the breast of the duck; this the leg of the duck; this is the wing of the duck; etc."

Then came the dish that the American knew was chicken.

He waited for the explanation. Silence.

"Well?" he finally asked, "What's this?"

The waiter replied, "It's a friend of duck."