A feeling of impending boom
I happened to observe something at my local hospital that gave me a feeling of impending boom: a Caterpillar Mobile Power trailer installed adjacent to a rather massive liquid oxygen tank. The power cables run right next to the tank.
MP vans are typically 500-625kW and have enough fuel inside to run 24+ hours.
The good news is that this whole assembly is roughly 100m from the hospital building proper. But then, given several thousand liters of LOX, I'm not sure that matters.
Reported the problem of course. Not sure if anything happened.