Duck walks into a bar, asks for a drink. Bartender says “we don’t serve ducks, get out”. Duck leaves.
Next day, duck comes back to the bar, asks for a drink. Bartender says “we don’t serve ducks here, get out don’t come back.”
Third day, duck walks into the bar and the bartender says “if you ask for a drink, I’ll nail your beak to the bar.”
Duck asks “Got a hammer?
Bartender says “no”.
Duck asks, “got any nails?”
Bartender says “no.”
The duck asks: “Can I have a drink?”