I'm not sure what it is about this joke but every time I see it, it cracks me up!!
A duck walks into a bar and asks: "Got any Bread?"
Barman says: "No."
Duck says: "Got any bread?"
Barman says: "No."
Duck says: "Got any bread?"
Barman says: "No, we have no bread."
Duck says: "Got any bread?"
Barman says: "No, we haven't got any bread!"
Duck says: "Got any bread?"
Barman says: "No, are you deaf?! We haven't got any bread, and if you ask me again and I'll nail your dang beak to the bar you irritating dang duck!"
Duck says: "Got any nails?"
Barman says: "No"
Duck says: "Got any bread?