I tried to join one a couple of years ago, and it was a bomb. There had been an arson-caused fire in the largest shopping mall in the Sacramento area. To celebrate the reopening of the mall, a choral music group organized a "flash mob" performance of the "Hallelujah" chorus at the mall. The event was widely publicized, and traffic was backed up for miles around the mall. So many people showed up that the floor of the mall began to bow, so the performance was moved outside the mall. It was all over by the time I got there.

It lacked the spontaneity of a true "flash mob" performance, and that's why it failed.

-Joe-

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