It's Friday, you can't wait to leave work. Have a few beers, maybe get a hand job by the old lady. You just have one more stop, to fix some wires touching on a street corner. Get your trusty ladder out, climb up, get your pliers and ZAP! Game over like Pac Man. Now some asshole is trying to get your body down, and you are dead, just hanging around by your safety harness. Ironically, your safety harness is the least of your worries. Maybe shutting off the main would have helped.