No biggie, it happens much more often than one would think. I know of a firefighter doing something similar that started a fire that caused a few million dollars in damages.
The title made me think this would be more like a fire I responded to. A probationary firefighter got into a squabble with another probie over some imaginary slight. The first probie had a party in which the second attended. After a few drinks #2 got himself thrown out. #2 then made a Molotov cocktail and threw it through the front picture window. After all was said and done, probies #1 and 2 were both fired and one of the classmates got a good deal on the home from the insurance company.
