Most people think couches are just for sitting, or maybe napping, and don't give it a second thought. But did you know couches can go berserk if you don't feed them a steady diet of coins, cell phones, and remote controls? And did you know some couches are grown on a farm? (Where do you think the term couch potato comes from?) Some come from two chairs who love each other very much, and some are actually aliens in disguise. And that's just the tip of the iceberg...