Sometimes, when you’ve got your 13,000 songs in iTunes on shuffle, you get the chance to hear music that you may not have really listened to. Sure, you’ve heard the song at least 12 times (or so iTunes tells you), but you’ve never really paid attention to it. After all, you’re reading a magazine, playing around online, or ruthlessly torturing someone under your desk. But what should you listen to while torturing them? Well, there are some unexpectedly scary or disturbing songs that fit the bill perfectly.