It starts innocently: You hum how you want your baby back baby back baby back ribs. But eight hours later, it's not so fun anymore. Why do some tunes get stuck in your brain?
Alien hand syndrome sounds like something from a B-grade horror movie, but it's a real condition. You could be completely at the mercy of your own renegade hand -- it could keep your other hand from functioning, punch you or even choke you.