Despite what those wine-swilling elitist bastards would have you think, the REAL drink of geologists everywhere is BEER. I have a favorite half-remembered quote from some Victorian mountaineer/geologists who said, to the effect, "Beer never tastes so good as after a hard day of field work". Of course, my apocryphal quote speaks Truth: beer, in the field, after a day of measuring section, or mapping, or tromping up and down hill and valley lugging samples, is something to bring a smile to even the most grizzled of geologists.
Anyway, folks might have seen this before, but it bears repeating. Why Geologists Love Beer is an article from Wired, based around beer-drinking culture and the most recent AGU Meeting in San Fransisco. There's even a little video to watch, but be warned: it'll make you thirsty.