There are certain sounds nearly everyone dislikes: the sound of fingernails scratching a chalkboard, or of a fork scraping a plate, just to list a few. For many people, hearing these sounds, or even ...

There are certain sounds that drive us batty. For many people, it's nails on a chalkboard. For me, it's the squeaking sound of styrofoam. What causes this reaction? —Brepark, via the Straight Dope ...