Thanks Lord, I too have done dumb things when I was a teen. I bought this PA from a guy and used it as my amp.
The ground prong had been hacked so it could fit into any socket. I was playing a cheapy gig and was wearing sandals.
the floor was cement and one of my sandals slipped off. I tell you, I was jumping around from the shocks. I thought it was silly and funny then, but later realized how much grave danger I was in. Thanks for the reminder.

I'm gonna go downstairs and check all of my connections in my studio now.