This guy goes home and catches his wife in bed with his best friend
whereupon he shoots her to death.  The cops carry him to jail.  Some time
later he goes before the judge who says, "Did you shoot your wife?"

"Yes, Your Honor, I did," the guy answers.

"Why did you shoot her?" the judge asks.

"Because I caught her in bed with my best friend," the guy says.

"I see, wee what did you do to him?" the judge asks. "

The guy says, "I said, 'bad dog, bad dog'."