I remember an instance like that, Specialist... Have I seen you?
Well, I've never been "drunk" drunk, as in with large amounts of grain alcohol, but a blood sugar issue or sheer fatigue can bring on symptoms like being drunk. I remember one time in Frets on Fire with a couple of buddies. There was this song that I had a hard time with on Amazing. My friend cranked it up to Amazing without telling me, and so I played, and whacked someone in the process, but acquired the high score regardless.
So drunkenness doesn't help you by way of the chemicals within your system, it increases the placebo effect some more (albeit due to those chemicals, but go with it).
Had the same instance in COD4, had the difficulty up on Veteran (I knew it was all the way up there this time), and I just mowed the Spetsnaz down =)
A bit off topic, but in CS:S, admins can install Mani Mod. If you were playing on my server and being a dick (although I wouldn't have complained about language unless someone was going all Samuel Jackson on us), I would have just but a beacon on you till you apologized. The beacon makes you super-easy to kill, as everyone knows your position, and you're glowing red.