Happenings and Flash Mobs

So, Monday's discussion of Happenings and Flash Mobs really intrigued me. I've been thinking about how i would approach doing a Flash Mob. I've been looking up a lot of these events caught on video and have found that the one in Grand Central Station to have the most impact. The participators in this event did the opposite of every other Flash Mob instance i have seen, they did nothing. they stood still, and that seemed to have more of an impact on the spectators than a random kung fu fight or massive pillow fight.
I feel that this had more of an impact because it reflected the ideas of the Happenings that occurred in the 60s. The act of standing still and not doing anything directly contrasts the mind set of a person in Grand Central Station, since everyone there is thinking about rushing to work or back home or just in a hurry to get somewhere. The act of doing nothing contrasted this frame of mind and put the spectators in an awkward position. It looked like no one could figure this out. People were in shock. For me, this seems to communicate the soul of Happenings. It is all about integrating the audience into the event and shocking them.