A Very Resourceful Plant
Before it was shut down entirely, I was able to privately tour the coal power plant in Southeastern Virginia. At one point in the tour, the guide told me to watch out for a cord on the floor.
The cord ran to a small, window air-conditioning unit that was duct-taped to a vent. Supposedly, one day the plant began to overheat, and the plant would have to be shut down in order to repair the malfunction.
There are emergency reserves for situations like this, but the plant was overheating faster than they could switch it over. Someone at the plant had just purchased the AC unit and had it in the back of their vehicle.
They ran and grabbed it, plugged it in, and pointed it into one of the vents. The amount of cool air it produced was enough to not only offset the overheating but also re-regulate the system.
So instead of repairing the issue, they just fixed the AC in place, and let it run continuously until the day the plant shut down. Credit: Reddit/SlayerOfHips