The guys were all at a deer camp. No one wanted to room with Bob, because he snored so badly. They decided it wasn't fair to make one of them stay with him the whole time so they voted to take turns.
The first guy slept with Bob and comes to breakfast the next morning with his hair a mess and his eyes all bloodshot. They said "Man, what happened to you?" He said "bob snored so loudly I just sat up and watched him all night".
The next night it was different guy's turn. In the morning, same thing; hair all standing up, eyes all bloodshot. They said "Man, what happened to you? You look awful". He said "Man that Bob shakes the roof with his snoring. I watched him all night".
The third night it was Fred's turn. Fred was a tanned, older cowboy, a man's man. The next morning he came to breakfast bright-eyed and bushytailed. "Good morning!" he said. They couldn't believe it. They said "Man, what happened?"
He said, "Well, we got ready for bed. I went and tucked Bob into bed, patted him on the butt and kissed him good night.
Bob sat up and watched me all night".