No help for the OP here, but a true story your post reminded me of.
Few years ago I made some changes to the kitchen in the house we were living in. The garbage disposal switch was right next to a light switch and I seemed to always hit the garbage disposal instead of the light. (not a good thing). So I wired up the garbage disposal switch so a red light on the switch was on all the time, regardless if the disposal was running or not. It was a reminder for me ... DON'T TOUCH! WRONG SWITCH.
Fast forward a couple more years and we were selling the house. At (their) inspection, that switch failed. (They) did not like it that the light was on all the time. (They) said it was suppose to be on only when the switch was on. I got so mad at that, I just removed the lighted switch completely. It passed then. So I don't care if the next person lost spoons and fingers and scouring pads down that disposal by flipping the wrong switch. The house eventually sold and it's not my problem any more. It still makes me mad thinking about that though. A lot of thought went into that wiring. But to this day, I don't remember how I did it.
Still, your story brought back a ghost memory of my past!