A duck walks into a bar and asks: "Got any bread?"
The bartender says: "No."
The duck asks again: "Got any bread?"
The bartender replies: "No."
The duck persists: "Got any bread?"
The bartender, annoyed, says: "No, we have no bread."
The duck repeats: "Got any bread?"
The bartender, more frustrated, exclaims: "No, we haven't got any bread!"
The duck asks once more: "Got any bread?"
The bartender, now furious, yells: "No, are you deaf?! We haven't got any bread, and if you ask me again, I'll nail your dang beak to the bar, you irritating dang duck!"
The duck pauses, then asks: "Got any nails?"
The bartender says: "No."
The duck concludes: "Got any bread?"