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 f***ing bread." Duck says: "Got any bread?"
Barman says: "No, are you deaf?! We haven't got any f***ing bread, for Christ's sake. Ask me again and I'll nail your f***ing beak to the bar you irritating b**tard of a f***ing bird!"
Duck says: "Got any nails?" Barman says: "No." Duck says: "Got any bread?"