A duck walks into a bar and flies up on a barstool and ask the bartender if he as any grapes? The bartender says no and the duck leaves. The next day the duck returns and ask the bartender if he has any grapes? The bartender says no and the duck leaves. The next day the duck returns and ask if he has any grapes? The bartender is annoyed and tells the duck, I didn't have grapes yesterday or the day before and I don't have any grapes today nor will I have any tomorrow. But, if you come in here again and ask for grapes I will nail your feet to the bar. The duck leaves. The next day the duck returns and ask the bartender if he has any nails? The bartender says no. The duck ask, got any grapes?