A duck walked into a bar and asked for some crackers. The bartender said "no."
The following day he went into the bar again and asked for some crackers. The bartender said "no, I don't have any crackers."
The next day the duck came in again and asked for some crackers. The bartender said "No, and if you ask for crackers one more time I will nail your beak to the bartop."
The next day the duck came in and asked if the bartender had any nails, "No." the bartender said. Then the duck asked "Do you have any crackers?"
