That's got to be the worst thing they could do to their BMW voluntarily... they put out the engine fire with the contents of a septic tank collection truck. They aren't the only people desperate enough to use sewage

I never would have bet that there were so many car fires, and that in the area, was a sewage truck, ready and available to put out the fire. I wonder, does the guy with the hose think before that sewage starts flowing, start up close, so you don't have to step in it, then back away as necessary