It was plugged into the wall through I'm guessing a high voltage neon transformer.
I have no idea if the cage was grounded or not. I assume it wasn't, which should have been fine if the connection to the tube was outside of his mouth.
I have no idea if the cage was grounded or not. I assume it wasn't, which should have been fine if the connection to the tube was outside of his mouth.
Though, what happened to the other end of the wire?