A guy sitting in a bar is looking really nervous.
Every time the door opens, he jumps. Every time there is a noise, he cringes.
The bartender, after watching this for an hour, finally goes over and asks, “What’s the matter with you?”
“Well, I received a letter today that said if I didn’t stop fooling around with his wife, he was gonna shoot me.”
For heaven’s sake, why don’t you just stop fooling around with his wife?”
Came the reply, “I would, but he didn’t sign his name!!”