Duck walks into a bar says to bartender, "Got any grapes?"
Bartender says "No sorry, we don't have any grapes."
Next day rolls around, duck walks into the bar says to bartender, "Got any grapes?" Bartender says, "No! we don't have any grapes". Next day rolls around, duck walks into bar says to bartender, "Got any grapes?" Bartender says "No! We don't have any grapes and if you come in here one more time and ask me for grapes, I'll nail your feet to the floor!!"
Next day rolls around, duck walks into bar says to bartender, "Got any nails?" Bartender says "NO!" Duck says "Got any grapes?"