The only way that he will stop drinking is when he decides that he has had enough. He mentions that he drinks to much and that is a sign that he already may know that something is wrong. The best thing that you can do and express is that you need to take care of your children and yourself. Let him know. Ultimatums will not work. In the morning, let him know what has transpired. For me, anything physical would send me over the edge. It is unacceptable in every way. Please take care of yourself.