It does act pretty quickly,
but you're talking about vapour saturation pressures, so perhaps on this occasion there may have been something, say ice in the drink, which slowed down the evaporation process just enough?
(Jimbojames Wishing every day could be like today, Tue 9 Oct 2012, 15:59, 1 reply, 13 years ago)

I'll be honest here jimbo,
my grasp of the science is ropey at best, but i'd have said even with Ice, she would have to be literally pouring i down her throat to get ill the way she did.
( Windy Pig I'm naturally quite suspicious about the moon., Tue 9 Oct 2012, 16:23, Reply)

it perforated her stomach I believe
so perhaps there were little unmelted bits still in it when she necked it.
( The Light in Chains don't touch the Pope's boner, Tue 9 Oct 2012, 16:34, Reply)

Or maybe the expansion mentioned above happened.
Ice would make fuck all difference because it's still hundreds of degrees hotter than liquid nitrogen.
(PsychoChomp, Tue 9 Oct 2012, 16:36, Reply)