One question though I've always wondered about - were you actually stuck in that thing? Like, could you pull your hands out?
Yes and no. I was one of the larger assistants I've seen in the stocks, and Northrup seemed particularly worried about me getting pinched as the stocks were secured. So I'm confident that my wrists and neck filled the holes pretty well, and I couldn't have taken my head or hands out even if I wanted to.
But I'm sure there must have been plenty of assistants over the years who were just "playing along," keeping their hands in place because that was the thing to do. It's amazing what stage fright + staring at the floor will do to a volunteer