A Duck Walks Into A Bar...

He waddles up to the bartender and says, "Got any grapes?"

The bartender says, "No, now get out of here!", and kicks the duck out the door.

The next day, the same duck walks into the bar, waddles up to the bartender and says, "Got any grapes?"

The bartender is incensed. He picks up a hammer from behind the bar and chases the duck out of his establishment. "If you ever come in here asking for grapes again, I'll nail your bill to the floor!"

The next day, the duck walks in, waddles up to the bartender and says, "Got any nails?"

"No!", says the bartender.

"...got any grapes?"