Duck

A duck walks into a bar. It asks the barkeeper: “Do you have bread?” Bartender: “No.” Duck: “Do you have bread?” - Bartender: “NO!” - Duck: “Do you…” Bartender: “LISTEN! I HAVE NO BREAD AND IF YOU ASK ME ONE MORE TIME, I’M GONNA NAIL YOU TO THAT WALL!!!” Duck: “Do you have nails?” Bartender: “NO!” Duck: “Do you have bread?”