Ugh. I don't recall ever getting drunk at a game.
*chuckle*
I did once call a girl I had a crush on who lived three states away one night while drunk during the aftermath of a D&D game, though. I tried to introduce her to a couple of my gamer friends over the phone, and by the end of the night, my friend Ted was telling everyone else at the party how much nicer she sounded than my previous girlfriend.
The closest real parallel I might have is smoking among my players. In two groups now, I've had a chainsmoker. They were both kind enough to limit smoking during the game, and would always only smoke outside. One would take 'tactical smoke breaks' during combat some times, whenever we hit a slow spot. It was rather nice because it gave me time to figure out how to speed up the rest of the encounter. The other gamer was a good DM, so whenever the game slowed down, I'd suffer through his smoke breaks to listen to his advice and thoughts about how the game was going. Those tended to be really good sessions, because I got commentary mid-adventure.
Damn, I need to game with that guy again. Stahn Li, are you reading this?
(p.s., this is the same guy who thought, when I was a freshman, that I wouldn't be able to handle a shot of vodka. Foolish man.)