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.""