When I think of electricity or pain, I often recall the scene in "Return of the Jedi", where the evil Emperor is zapping Luke using lightning bolts from his finger tips. I have been through the unpleasantness of an electric shock many times in my life. I can sympathize that Luke Skywalker writhes on the ground as electrical bolts run up and down his body. He is not feeling the tingle from a nine-volt battery. Although electricity can be dangerous,…