This is an actual poster that UNICEF used to promote Global Handwashing Day in Uzbekistan schools in 2012. I like to think of it as a brilliant example of why images can speak louder than statistics. After all, I can tell you that 58% of communicable diseases could be prevented with regular handwashing. But, really, would that change your behavior as much as a menacing clown threatening to fist you (I think) if you don't wash up properly? I suspect not.
Via the HIAControversies blog