Banksy artwork with built-in shredder - video

[Jon]

It's been interesting to watch the artist Banksy transition from essentially an overblown graffiti dude into a bona-fide conceptual artist who is simultaneously mocking the price of art and profiting handsomely from it. His latest stunt is hiding a shredder inside the frame of his Girl with Balloon piece. At the instant the artwork is sold at auction at Sotheby's in London (for over $1 million USD), the shredder is activated. In a further stroke of irony, it appears that this performance increased the value of the work. My best guess is that Banksy had a confederate inside the auction, who pressed a button at the perfect moment. 1:00 video: