Bartender looks down to the end of the bar and sees a guy with his head down who hasnt touched his drink for over a half an hour. He heads over to talk to him.

Bartender: Hey pal, is something wrong?

The Guy: Yeah, Im really depressed

Bartender: Why, whats the matter?

The Guy: I caught my wife in bed with my best friend

Bartender: Wow, thats horrible. What did you do?

The Guy: I kicked her out of the house, sent her packing, its over

Bartender: Thats pretty drastic, what did you do to your best friend?

The Guy: I sat him down, tied him up, looked him straight in the eye and said, Bad Dog! Bad Dog!