A duck walks into a store and asks the cashier, "Got any grapes?"
The cashier says, "No, we don't sell grapes."
The next day, the duck comes back and asks again, "Got any grapes?"
The cashier, getting annoyed, says, "No! We don't sell grapes."
The third day, the duck returns and asks, "Go any grapes?"
The cashier, frustrated, says, "If you come in here one more time asking for grapes,
I'm going to nail your beak to the floor!”
The next day, the duck walks in and asks, "Got any nails?"
The cashier, confused, says, "No..."
The duck grins, "Got any grapes?"