I'm revising an article about the tv show House, M.D., and my knee starts to hurt. Went to the doctor yesterday, and he told me it's a ligament or tendon (can't remember which) swelling under the kneecap. The net result is that just as I'm working on a paper about a character with a screwed-up leg, I start to limp. Lovely.
I'm just glad I'm not writing about zombies.