BlueEyedBlondeHeart- the duck keeps asking and asking for bread, the bartender gets annoyed (bc he doesn't have bread) so he's says he's going to nail his beak into the table if he asks for bread, so the duck wants to know if he has nails to nail his beak into the table, and since the bartender says he doesn't have any nails, the duck asks for bread again. (bc he can't nail his beak into the table.)