Context: We came across a group of goblins, and after fighting them a while, our rogue ran out of arrows.

Rogue: “I fire my shortsword!”

DM: “I’m sorry, what?”

Rogue: “I’m gonna fire it like an arrow with my shortbow!”

DM: “This is stupid, but fine. Roll for it.”

Rogue: “I got a 20!”

DM: “Wait, is the goblin– it’s dead now, I guess.”