>>434495Basically once you plugged in one end, the other will immediately dump a full load when it's touched by metal. Since jacks are generally set up to also dump electricity when a plug is inserted, a fire will probably start. And I found a disturbing story about someone who touched the unplugged end on one of these. Didn't kill them, but definitely did serious damage.
Even if you're a pro and know what you're doing, stores wouldn't sell these due to the massive safety hazard.
