Fair enough. The line I ran was 100~ feet long and employed 6 people. It was composit spiral winding. Cardboard tubes basically. A backstand with 15 rolls of paper, the winder where all the paper gets wrapped around a mandrel (my job/operator), an automated cutter, and several packers.
On my winder, myself and the manager set up a trip line e-stop under the machine, instead of stepping on something you only had to kick your foot forward. I was quick with that. Snapped the line off countless times kicking it too hard (hard not to get mad when someone blew the line up cause of a dumb mistake)
Over the years, the kick line remained, but we had set up light curtains around the drums. Major in-line running pinch points from a winding belt. It was easy to stop the machine by throwing your hand past that too.
In any event, any addition of a panic button on my machine would be an improvement over the nothing I currently have. The circuit is the easy part, figuring out how to brake the motor/spindle is another story...