I was nearly the victim of a situation like this in the late 90s. There was a power failure site-wide and the generator failed to start in time (water in the fu

I was nearly the victim of a situation like this in the late 90s. There was a power failure site-wide and the generator failed to start in time (water in the fuel). There were three of us in the machine room at the time of the power incident. Unfortunately due to some insane security requirements, the doors lock in a failsafe situation (this was a UK MoD facility) voiding all health and safety laws. One of the idiots decided to light up a cigarette whilst we were sitting in there in the very dim emergency lighting. Turns out the power system for the halon was still active and the 60 second alarm went off. Fortunately we hit the stop button on the wall to prevent it being dumped on us. New pants all round that was.