I found this video on stumble upon, and I thought it had a great message.

http://www.stumbleupon.com/su/1Et5CM/www.youtube.com/watch%3Fv%3D2lXh2n0aPyw

This was a neat project and it made me start to wonder about their theory. I loved their idea of the "fun theory," and I wonder in what other ways we could change people's behavior by adding fun to things. Any ideas?