Jb^ was siting close to me... now that I know he did that ill have to hit him next time I see him lol.
Therein lies the problem.. if you are at the point where you aren't aware that someone is messing around with your computer, going on irc, they could spam, get passwords, etc.
There is the whole idea of "you solely are responsible for what happens with your account / online identity / etc." If someone lets someone else use their account or online identity (drunk/high or not) they are responsible for what their account "did" unless they can prove that it was some kind of mistake / screwup, i.e. a computer virus. Besides that, they are fully responsible for what is done with their identity online.
And yeah, you can't always tell whether someone is drunk or high. To be honest, if they can hold a normal conversation without causing problems (like spamming, letting people use their identity, etc) there's nothing we can do... what someone does in real life is their problem, not OPU's.
However, if people are coming on IRC and saying things like "i'm drunk, watch me <paste youtube link>" over and over that is spam, and shouldn't be tolerated.
I think what Sirbomber is trying to say is this: people shouldn't get excused for bad behavior because they are drunk/high and have no control over themselves. If they spam on IRC while drunk, it's just as bad as if they spammed on IRC while sober.
And on a completely unrelated note (though it doesn't matter, it's just my opinion): I usually like to be far away from computers when I am under the influence, or anything else that is capable of storing "information" for later, for that matter
Wouldn't want said "information" to come bite me in the butt later on B)