I'm spending some time in a cube (ugghh, I know) next to a woman who seems really nice, except for one thing. When she's away from her desk for a while, her PC goes to sleep, and she's convinced that the way she needs to wake it up is to slide the mouse back and forth a couple of times, and then pick it up and smack it on the desk twice. Exactly twice.
Apparently, by the time she's through executing "smack" number 2, her computer has been sufficiently jolted to be able to respond to her, because she ceases the beating at that point.
I'm sure there's a usability lesson in here somewhere, but it escapes me at the moment. My head hurts too much to think about that.