Ohhhh sticky situation...Just remember that sometimes it takes a few "knocks to the noggin" for someone to catch your seriousness...it sounds like this gentleman needs a few more, it wouldn't be surprising if he does get in serious trouble one of these days and you're strong words of encouragement will come back to haunt him...until then you can only suggest and hope people listen, we can't really force them especially when they are completely with it.
Hope more people listened to ya