Flash mob factory Improv Everywhere stages weird, transcendent little moments of cooperation, synchronicity, and pantslessness (they’re the ones behind the No-Pants Subway Ride). But their latest effort, the Car Alarm Symphony, doesn’t do much besides prove that parking lots, already a blight on the landscape, could always be worse.

For the symphony, 100 volunteers parked their cars in a mall lot, then set off their alarms in unison while being conducted by an Improv Everywhere group leader. The hideous cacophony does have moments of emergent rhythm and pattern, but mostly it just makes you want to pick up the cars and throw them off of Earth.

On the plus side, the hammerheaded penis graffiti on the wall behind the “conductor” is pretty entertaining.

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