Hi mrbanjo
the following is "me guessing": When people tried to cheat - to get "free games" by pounding on the coin-door hoping the Coin-Switch closes (due to the pounding): "Anti-Cheat-Switch". Also people pounding on the Backbox hoping the Replay-Counter steps: "Anti-Cheat-Switch".
When people got angry about an pin - people kicked (with a foot) the pin: "Bounce-Switch".
What happens is always the same: The "weighted switch" opens - cuts current - for every player it is "Game-Over" - people had to throw-in money or use the (Credit) Replay button for to start a new game. Greetings Rolf