Re: The same problem every time
Err.... I think they will still happen. Management wants to save a few dollars. Server rooms get re-configured (but the switches aren't moved). And the mindset that "no one will ever press a red button on the wall unless it's an emergency". In one place I know of, there's something like 8 switches. Four of them have had the cabling removed, the other four haven't. The catch is, none are marked as to "active" or "inactive" and none are covered. Bump or touch one at your peril.
The only real solution is to label the darn switches... "lights", "Emergency Power Kill', etc. Even a a bit of paper and taped to wall will work.