A duck walks into a bar

A duck walks into a bar. He asks the bartender "do you have any fish?" The bartender replies, "No fish mate sorry." "Okay" says the duck, "I'll have a pie and a pint."

The duck walks into the bar the next day. "Got any fish?" he asks the bartender again. "No, same as yesterday!" replies the bartender slightly annoyed. "Okay" says the duck, "I'll have a pie and a pint."

The duck walks into the bar the next day at lunchtime and asks the bartender, "any fish?" "Look here" shouts the bartender pulling a hammer from underneath the bar. "If you come in here asking for fish tomorrow I'm going to nail your bill to this bar."

"Okay" says the duck, "I'll have a pie and a pint."

The duck strolls into the bar the very next day. "Got any any nails" he says to the barman."

"No" he replies

"Got any fish?"