Sure it's an ad, but taking over your office building's lighting system en masse with an army of thirsty friends as an homage to every Irishman's favorite stout is a pretty refreshing dream while you're pinned inside your cubicle. Now if we could just do this with a massive INSTEON installation-then we'd be set. Check out the flashmob-inspired ad after the jump. Now I'm thirsty and it's barely even noon.

[Space Invaders via Not Cot]