A Guy Is In A Bar Looking Slightly Worse For Wear... (NSFW)

...and the barman notices he looks pretty down and has been drinking quite heavily that night so he decides to ask him what's up.

The guy answers, "Well, I got home from work today to find my wife fucking my best friend."

"Shit, I'm sorry to hear that," says the barman, "that's terrible. What did you do?"

"I told my wife it was over, that I was going out for a couple of hours and when I get back she better be gone because I never want to see her again."

"Fuck," says the barman, sympathetically. "And what did you say to your best friend?"

"Bad dog!"