Look at the Check

A guy eats at a restaurant. At the end of the meal, the guy looks at the check: Salads . . . . . . $3 Steak . . . . . . $10 Works . . . . . . .$5 Cola . . . . . . . $2 ----------------------- Total $20 The customer asked the waiter "What's 'works'?" "This time it didn't work" said the waiter and crossed out that row.