This is pretty neat stuff:
http://hotair.com/archives/2008/04/08/video-best-game-ever/
I wonder if they had to go the whole game before anyone let them in on what was going on.
They usually do Sq - that is kind of Improv Everywhere's MO. Unless a safety concern comes up. The vast majority of their things are well thought out and harmless. I think this is one of those things.
The kids seemed to enjoy it - so kudos.