So a duck walks into a bank... He waddles up to the teller and demands a big mac, fries, and a shake. ""This is a bank."" She explains. ""We don't serve food here."" The duck walks out. The next day the duck comes back and walks up to the same teller. Again he demands a big mac, fries, and a shake. Slightly aggrivated, she explains again that he won't be getting any food. The next day the duck comes back, orders a big mac, fries, and a shake. The teller is furious. ""WE DON'T SERVE FOOD HERE, THIS IS A BANK! IF YOU COME IN ONE MORE TIME, IM GOING TO NAIL YOUR FEET RIGHT TO THE FLOOR!"" The duck leaves calmly. The next day, sure enough he comes back. He walks up to the teller and asks ""Do you have any nails?"" ""No."" ""Get me a big mac, fries, and a shake.""