I read xkcd and actually get about 75% of the jokes, I think. Anyway, this one popped up in Reader this morning, and it made me laugh, especially in light of our recent discussions about O/S, a.k.a. the “which O/S would win in a fight” thread.
Enjoy, and read xkcd if you don’t already, and don’t forget to hover over the comic for the hidden subtest message. I always feel proud of myself when I get one of his jokes.