One day a duck went into a hardware store and asked the owner for some duck food. The owner looked at him funny, and said, This is a hardware store and we don’t carry duck food." The next day the duck came back to the hardware store an again asked the owner for some duck food. The owner, disturbed that the duck came back, said, I told you yesterday. This is a hardware store; we do not have any duck food! If you come back and ask for duck food again I will cement your feet in the ground!" So the next say the duck came back again and said, Do you have any cement?" "No, said the storeowner. Then, the duck said, Do you have any duck food?"