Powerless. Step one. Give him over to HIS higher power, and have fun this weekend. YOU aren't drinking yourself silly. HE is a grown man, choosing to screw with his life and health. He is not a child. Detach through prayer. Turn it over and release any responsibility. He'll be there Sunday night when you get back. If he has an accident while you are going maybe HE will see that it is a result of HIS choices, not yours. Enjoy being with your children. THEY need you.