I've heard about it with light posts and I've heard about it happening with sewer grates & manhole covers as well.
Light posts I can understand, but sewer grates and manhole covers?! Why in the world would they be electrified?
http://www.suntimes.com/news/nation/600384,CST-NWS-cat12.article
ironic, lucky no one was hurt
chalk one more up for dogs !!!! hahaha…i have a cat too just joking!