A duck walks into a bar and asks "got any crackers?"

The bar tender says no.

The duck walks out.

Duck walks in the next day and asks, "got any crackers?"

The bar tender says no.

The duck walks out.

The duck walks in the next day and asks got any crackers?

The bar tender says, "I told you yesterday and the day before that no! And if you ask that one more time I'm gonna nail your beak to the bar!"

The duck walks out.

Duck comes back the next day and asks, "got any nails?"

The bar tender says no.

"Got any crackers?"