Following a standard exercise on the stealthy approach to an enemy soldier, Captain Mainwaring calls Sergeant Wilson into his office. He has received an alarming letter from Pte. Godfrey, informing the captain of Godfrey's intent to resign from the unit at the earliest possible convenience. Given Godfrey's vital role in the platoon (as the soldier who makes the tea), Mainwaring is unwilling to let Godfrey go, and demands an explanation. Godfrey thus tells him that his decision emerges from a recent incident in which he found a mouse in his kitchen, but found himself unwilling and incapable of killing it; and if he can't kill a mouse, how can he be expected to kill a German? During the telling of the story, Godfrey reveals that in the previous war, he was a conscientious objector who refused to fight.