Just a note to everyone who carries around a spare smartphone Li-ion in their rear pocket: buy thicker underwear. The scene you see above was all caused by an obviously volatile HTC Touch Pro battery, one that the pants-wearer claims is an authentic HTC cell and not a cheap-o alternative from eBay. As the story goes, a foul odor led him to a laundry pile, where he uncovered eight moist socks, a torched battery and a ruined pair of pants. Look, we're glad this guy's okay and all, but seriously, can you imagine what this testy little thing would've done when tossed into the dryer? It's a blessing in disguise, kiddo.