Yeah, that’s the award-winning plan I was talking about. Normally, that would be pretty simple and safe, but this is a special case. Somebody got the job of setting up that display, considered all the options they could think of, and built it the way they figured was best. See above for what they thought was the best way to do this.
You want to touch something that mind built? With wall current running through it? Not me, man. Count me out.