A duck walked into a bar and went up to the bartender and asked, "Got any grapes?"
The bartender, a little peeved, said, "This is a bar, not a grocery store. NO, we don't have grapes!"
The duck walked out of the bar but was back again the next day. He again walked up to the bartender and asked, "Got any grapes?"
The bartender, his face turning red, said, "I told you yesterday! WE DON'T SELL GRAPES! WE DON'T HAVE GRAPES! If you ask me again, I'm going to nail your bill to the bar!"
The duck walked out but was back again the next day. He walked up to the bartender and asked, "Got any nails?"
The bartender, not expecting the question, said, "No?"
The duck then said, "Got any grapes?"
