A duck walks into a bar…

… walks up to the bartender and asks “do you have any corn?”
The bartender says “nah we don’t have any corn”
So the duck leaves.
The next day the duck walks into the same bar.
“Do you have any corn?”
” no we don’t have any corn” says the bartender.
The duck walks out again.
The next day the duck walks into the bar again.
“Hey mate, you got any corn?”
“NO WE DONT HAVE ANY FUCKING CORN! IF YOU ASKFOR CORN ONE MORE TIME IM GOING TO NAIL YOUR FEET TO THE BAR!”
The duck says “sorry” and walks out.
The next day the duck walks into the bar and says ” you got any nails?”.
“No, we dont” says the bartender.
The duck says “Well, you got any corn?”