Coat with static quills that stand up and shoot lighting when wearer is threatened

A student at London's RSA has prototyped a coat with electrostatic quills that stand on end when the user triggers an "I'm-feeling-threatened" button, and shoot bolts of blue static lightning at those unwise enough not to back off.

The prototype design is a coat with warning strips of fur that become electro-statically charged in situations where the wearer feels threatened. When charged the fur begins to stand on end; a visual indication that the wearer is uncomfortable. If someone invades the wearer's personal space they will begin to feel a second warning; as they enter the coat's electrostatic field they will feel tingling skin sensations and their hair will stand on end. The fur will begin to twitch toward them and emit crackling sounds. If the 'threat' proceeds to touch the fur then 100,000 volts of electro-static charge discharges from the fur, into the offenderís body (non-lethal but definitely a bite).

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(via We Make Money Not Art)