We all know what having a few beers will lead to. It will be a few more and a few more and a few more. It doesn't sound like he has truly accepted the fact that he is an alcoholic. It would be a good idea if you become as prepared as possible as to what you will do when it progresses and learn as much as you can about alcoholic behavior to be able to take care of yourself and to be able to see the signs of progression.