"Men are dirtier than women. So scientists confirmed by spying in public restrooms, watching as one-quarter of men left without washing their hands. The worst offenders were at an Atlanta Braves game. In contrast, 90 percent of the women did wash up. Wednesday's results mark the American Society of Microbiology's latest look at how many people take what is considered the single easiest step to staying healthy: spending 20 seconds rubbing with soap under the faucet..."