A duck walks into a drugstore，and asks the cashier if he has any beer. The man says，“No，this is a drugstore，we don’t sell beer here.”The duck leaves，and returns home. The next day，he comes back to the store and asks the cashier again. The man then replies，“I told you yesterday！We don’t sell beer here！If you ask me one more time，I am going to nail your feet to the floor！”The duck leaves again. One final time the duck enters the store the next day，and this time he says，“Do you have any nails？”T...
