A duck walks into a bar and says, "Got any bread?"
The bartender says, "No bread here."
And then the duck says, "Got any bread?"
And the bartender says, "Didn't I just f***ing say that there was no bread here?"
And the duck says, "Got any bread?!"
And the bartender says, "You stupid duck! Or should I say d***? There's no bread here. Don't make me say that again, or I'll pin you to the wall with a nail."
So the duck says, "Got any nails?"
And then the bartender looks surprised, and says, "Of course I've got f***ing nails. Can't you see them?"
And the duck says, "Got any bread?"
And the bartender throws the duck out of the bar.