Fifteen minutes, a dental-floss box, my pocketknife, and some superglue later, that switch would have a nifty new safety cap on it that would have to be uncovered before the switch could be turned on OR off.
I don't care WHAT the electricians say can or can't be done. If I had more time and under $50, I'd remove the switch from that box, run a piece of Romex or BX a foot to the side, and put the switch into a surface-mount box of its own, complete with a security cover over it, perhaps with a key lock. Nothing is impossible when it comes to wall switches, there's just things that they don't WANT to do because it would be difficult, people would bitch about its appearance, or they'd get yelled at over some zoning or code regulation.
I'd get the thing done, and if someone had an issue with it, I'd tell 'em it's a personal problem, go talk to the Chaplain.
Biting the hand that feeds IT
