You jump the prick, and put him in traction with a ball bat, convincing him that this will happen again (and again) when he least expects it, or he can let it go. Also convince him that if he retaliates in any way, it'll happen to not only him, but his family as well. You'd better really convince him and make a believer outta him. Beat him unconscious, then break elbows, knees, wrists etc. That kind of
berserker extreme violence, once visited upon him, will take his manhood away, and turn his bowels into water at the very thought of you.
Or you just chalk it up and tuck your tail & go home.