Came to this site via a link from the Freakonomics Blog ...
Lost Wallet Test, where wallets were dropped in front of hidden cameras to test people's honesty.
Good news ... people seem mostly honest! Yay - score one for those of us with positive outlooks on the world.
BUT - be wary of the data (as I always am with statistical experiments like this). MAKE SURE to read the comment on the Freakonomics link page, as it does talk about the misleading nature of some of the graphs.
Interesting, for sure. Seems like I would have liked to have taken some sociology classes in the undergraduate days. Shame.