SAW VII is coming: 3D Photobooth Trap freaks out victims

Last week a SAW VII 3D Photo Booth was set up in a cinema foyer, advertising free Halloween photos. The potential posers got more than they bargained for though, as the photobooth comes alive, it's a trap!
I especially enjoy this guys reaction, he superfreaks out, shoving his mate first out of the photobooth and then bounces out himself in sonic speed. The setup is rather simple, where one would expect a solid wall there's a trap door and a masked person simply sticks his head in the booth at the right moment. Freaky, yes. Classic prank. Too. Anyone care to save the damsel in distress who just sits there covering her eyes?