I have a story. I was out with some friends in a bar and some idiot grabbed my friends brand new fiancee's ass. My friend confronted him. The idiot taunted my friend and insulted his size and height and poked him in the chest. Big mistake. My friend was an all state wrestler and had been studying judo since he was 6. My friend proceeded to break the guys arm in 2 places and his nose. He then broke the ass grabbers friends arm. Moral of story, if you get caught grabbing someones girls ass, admit it and apologize. Also do not step in to defend your crude friend when some guy just snapped his arm and exploded his nose.
And did your friend wind up arrested for assault and battery, then sued for every penny he owns, or will earn in 10 years?