I saw a good example of this the other night. 2 couples at the table, one guy orders a very expensive bottle of chardonnay. They look at the menu, he pays no attention to the structure of the menu (ie: 3 course prix-fixe or degustation menus) and orders "the fettucine" as an appetizer from the tasting menu and then 2 main courses (each carrying a supplement). When the waiter questioned the choices he got irate. The "fettucine" is actually a dish made with cuttlefish cut like fettucine and sauteed quickly to keep it tender, a sauce made of creamed sea urchin, garnished with sea urchin and caviar. When the waiter tried to explain the dish, the guy cut him off with "I know what cuttlefish is". Needless to say, the dish came out and the man pronounced it "dreadful" (no pasta!) and had it taken away. I laughed, but the waiter was stressed the whole rest of the night. The check was $1400 including the $950 of wine.