Originally Posted by
suzieq1972 
I wouldn't worry about how he's acting or what he's doing. Why ruin your day just because he can't keep himself straight?
If everyone looks at him funny, then so be it. Entertain your guests and if he causes a scene, he'll look crazy not you.
Yeah, I really don't mind this option. I just don't like having an elephant in the room either. If he acts suspicious and won't leave, perhaps I'll just acknowledge to my family that it is what it is and he's drunk, so they don't have to wonder what the heck is going on. Next time he does it in front of his own family, who thinks he doesn't have a problem, I might not be so reserved.