Dirty Deeds

S1 E5: Behavior change expert Daniel Pink devises experiments to stop those dirty little habits we think we can get away with. In his sights are sweaty gym users who don't wipe their machines after use, men whose aim is off target in public restrooms, people who don't wash their hands and those pariahs of modern life - double dippers. Can he succeed in getting us to clean up our acts without us even realizing?