a CPL in front of a promotion board - being tested on his knowledge of general orders.
Board member: "You are on guard duty and a submarine surfaces in your guard post." "What do you do?"
CPL: "Is it an enemy of friendly sub?"
Board member: "enemy."
CPL: "i shoot it with a torpedo."
incredulous board member: "where did you get a torpedo?"
CPL: "same place you got a sub."
he said it with a straight face