Wacky Co-Worker Habits?

weekendWarrior asks: "Every office has 'that guy.' The one that performs some bizarre or nonsensical action almost daily. The guy with an almost love-affair for the company's standard issue red stapler. The guy who prints out every email he receives (even the spam - thank god he's not on some pr0nographic spammer list). What strange, bizarre, and wacky habits do your co-workers have?"