Does Japan produce the best prank videos in the entire world? Based on this hilarious video, we're going to have to concede that they do. The target of this gag is an office drone casually strolling through his workplace when he spots several screaming coworkers. The source of their terror: A frighteningly lifelike, full-size dinosaur puppet which chases the poor victim back down a corridor. Assuming it's not all staged for our enjoyment, we don't blame the poor guy for not noticing the human legs sticking out the bottom of the dinosaur — or if he never wants to watch "Jurassic Park" ever, ever again.