Except to me...who could have caused your house to explode.
I wonder if that has ever hapened? I sort of presumed that for the duration of doing it, and the fact you are probably drawing air from the main stack, that this would be unlikely. But who knows.
And after LazyPups response, I wondered if roofers, smoking on the job, up on the roof, walking past the soil stack vent up on the roof, or leaning over it while replacing a boot at this location, has ever triggered an explosion.
I truly am curious about this now.
I have also heard how hydrogen gas build up in a hot water line can cause an explosion if you oipen the hot water after it sat a long time, and held a match up to the faucet.