Something different: B-boys and "The Mute Button"

This is a little off-topic, but worth sharing: Improv Everywhere's latest stunt involved 23 actors (including some b-boys) and 2 dogs who infiltrated a public space in Brooklyn and went on "mute" at coordinated intervals. The boombox used for the b-boys was one of the prime signals for sound transitions. This is the same group that staged the Frozen Grand Central stunt (in which I participated) and is effective and funny in much the same way.