And at the same time provided everyone with a simple, free, and perfect way to fireproof his/her house.
You could wait for the fire department, which may take hours to get there, and hope that no malicious party down the street saw the fire, or you can do this. It turns out that both are quite reasonable reactions in this scenario, and that the latter is much more obvious to the layman.
There is no good reason to get angry at the layman for taking a course you don't prefer.
