I think that story, is one his “stories”.
He has some very complicated jokes, which are difficult for most people to understand and usually there is an actual punch line that eventually accompanies the story.
But, think about it: How is an inmate going to control the flow of electricity to “Merely Shock” someone?
Can’t and it probably is one of his complicated stories...
Lets say you’re right.
Decent people tell that story?
It’s problematic for me at least.