Media artist Zac Ong has subconsciously cried out for help by creating Repel, which is basically a sash that shoots lasers whenever the wearer's personal space is breached. Not lethal ones, mind you, but this thing looks like it was built by the agoraphobe division of Cyberdyne Systems, what with the infra-red sensors and rotating, shoulder-mounted laser and all. The garment is not commercially available—it's an art project—but fashions like these are almost certainly in the future for paranoid humans. Hey, if you want to strap a Mission: Impossible burglar alarm to yourself, be my guest. But you're also probably not someone who should worry about being approached by strangers much anyway. Via PSFK.