Did you know that just seeing a frightened person is enough to scare us? This little fact was expertly used by Rethink vancouver to promote Science Worlds recent exhibit "Scream! The Science of Fear.". A regular looking photo booth was placed on the high street, and once it lured unsuspecting people in, it flashed the image of a scared woman instead of taking their picture. When you exited the photo booth, you got a free pass to the exhibit and their photos with the text printed on the sheet: "A photo of a scared person is enough to spread fear. We can explain."
"Thankfully, no heart attacks were reported."