If he can listen, tell him that his drinking is upsetting you and when he drivs in that condition, you 're fearful for his life and that of other people. ut an alcoholic / problem drinker cannot be helped unless and untill HE admits that he has a serious problem and needs help for it. You can't "not-drink" for him. I quite like Nicolai's idea of writing a letter to him, so he can have all your thoughts in one place, and can ead it through without interrupting you. And yes, too, Al-Anon ( reached directly or through the AA number ) could help you personally.