One day a duck walked into a bar and asked the barman, "got some bread?"

The barman said, "na".

The duck said again, "got some bread?".

The barman said, "I already told you - no"

The duck said again, "got some bread?"

The barman was furious and he said, "If you say that one more time I'll get get a hammer and some nails and nail your beak to the floor".

The duck was quiet for a while, he was thinking.

Two minutes later it said, "have you got a hammer?"

The bar man said, "No".

The duck said, "got some nails?"

The bar man said, "no".

So the duck said, "got some bread?"