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?
Your link kicked this one up as well….this is hilarious!
How come the invisible dogs are so much better behaved than real ones? When I run my invisible dog for agility (aka walking the course), he always qualifies. Well, except when I was running my invisible Jet the try-ing.