This was told to me by somebody who had been in the military, so it may be one of those stories.
The two soldiers were assigned to a new outpost. They bunked in a building in some town. They were sleeping.
One of them woke up. “What’s that noise?” He wondered. He didn’t turn on the light. He stepped softly around the room, trying to locate the source of the noise. He got closer. The noise became more distinct.
“It’s in my shoe.” He gently picked up his shoe and listened. “There’s a mouse in my shoe.”
He walked slowly to the window, which was open. With a mighty heave he tossed the intruder out the window.
“My watch!” he said.