Why do you want to waste your time trying to change that asshole? That's an old asshole they're not going to change even if they know it's for their own good they're not going to change. The more sense you try to teach a grown person the less you are going to have. Stay while changing your world by changing yourself unless you're old dog then you has to work on you old tricks. TGIF. Have a wild weekend and enjoy life for a change and stop bringing everybody around you down.