A duck walks into a bar. The duck says to the bartender, "Hey bartender, got any bread?" The bartender says, "No." Then the duck says, "Hey bartender, got any bread?" The bartender says, "NO!" The duck says, "Hey bartender, got any bread?" The bartender says, "No, and if you say that one more time I will nail your bill to this bar!" The duck says, "Hey bartender, got any nails?" The bartender says, "No." The duck says, "Well then, bartender, got any bread?"