TUAW reader Evan Hindra went to sleep one night with his MacBook Pro playing music. The next morning, it wouldn't sit properly on the kitchen counter top. When he flipped over the laptop, he found that his battery had begun to bulge. He called up AppleCare and they're sending him a battery. (He continues to wonder whether the battery problems date back before the bulge to a series of unexpected shut downs.) On the bright side, his MacBook Pro didn't explode, burst into flames or start playing random Barry Manilow tracks, all of which could cause permanent and irreversible harm. If your MacBook Pro starts displaying odd symptoms, you might want to take a good look at your battery and make sure it's not going all Alien on you, as in the original version with the icky chest bursting scene.