A new horror movie called "Devil's Due" . . . about a crazy devil child . . . opens on Friday. And to promote it, the producers had a crew build an animatronic baby that looks possessed.
Then they put it in a stroller, made it sound like it was crying . . . and scared random New Yorkers who stopped to help it by making it JUMP OUT at them. It might not SOUND that scary, but just about everyone they did it to was TERRIFIED.
(Search for "Devil Baby Attack." It shows one person react right at the beginning, and then a big montage of reactions starts about 30 seconds in.)