mean drunks, how can someone become a nice drunk?

Many people know someone that is a mean drunk. Someone can be a really nice person but when they become intoxicated, they act outside of their normal, kind personality. So if someone is a mean drunk what should they do about it: stop drinking completely, drink less, or maybe try anger management? I believe if someone is a mean drunk they don't necessarily have to stop drinking alcohol all together, they just have to find a way that works for them such as drinking in moderation. What do you think, what should a mean drunk do to stop being "that guy"?