A duck walks into a grocery store and asks the manager, "Got any duck food?" The manager shook his head and the duck left.
The next day, the duck walks up to the manager again, "Got any duckfood, yet?"
The manager said, "No!" and the duck left.
The third day, the duck walks up to the manager, "Got any duck food yet?" The manager screamed, "No, I don't have any duck food! I'll never have any duck food! And if you come in here and ask again, I'llnail those webbed feet to the floor!"
The next day, the duck walks up to the manager, "Got any nails?"
"No."
"Got any duck food?"