Then a friend of his pulled the same thing on his parents “I don’t have to listen to YOU. I will move in with my buddy!”.
So the next thing you know he is working all the time - while his buddy and his girlfriend are freeloading at his place.
He gets off work early one day and finds his girlfriend naked in bed in the middle of the day - usually she wore pajamas. Suspicious he opens the closet - and there is his ‘buddy’ standing there naked.
I told him “I would have NEVER opened that door. I would have sharpened my knife collection, cleaned my guns, practiced nunchucks - for HOURS - until he came CRAWLING out of that closet.” He laughed and said he would have if not so mad he wasn’t thinking straight.
I guess the screwing he got was not worth the screwing he was getting.