Ok this really will change your view of how you view the world.
Just follow the simple instructions carefully, all you will be doing in the video is counting how many times a certain team throws a basketball. You need java enabled to download the video applet. Takes about 30 seconds to do the test.
and don't spoil it for the rest if you have done it before.
http://www.redtailcanyon.com/items/519051.aspx