Video games are statistically proven* to cause violence, anger, depression, heartbreak, pestilence, dry rashes, higher taxes, climate change, traffic jams, thunderstorms, crying babies, Jersey Shore, the shortage of oil, dry rot, wedgies, and Lindsay Lohan.

One thing they don't cause is tooth decay. What better way to celebrate that than giving kids copies of Plants vs. Zombies instead of candy on Halloween? That's exactly what the American Dental Association is doing with the "Stop Zombie Mouth" campaign. PopCap is giving away a ton of PC and Mac copies of the tooth-friendly game for adults to give this Halloween, all in the name of fun, zombies, and promoting oral health awareness. (Just don't eat any candy while you're clicking away.)

Parents can pick up free coupons redeemable for a PC or Mac copy by visiting the Stop Zombie Mouth website, or by visiting their local participating ADA dentist. There are also trading cards and other themed items for kids to get their werewolf mitts on this Halloween.

*nooooo they're nooooot