Albert Wagner writes:
Like a pilot light?

One of the neat things about pilot lights and gas leaks is
that since the pilot light is always burning, it is always
burning off any gas in its vicinity. So no, a pilot light is
unlikely to ignite an explosion as a result of a small gas
leak.

As for large gas leaks, they just don't happen that often, and
as I said before, I'm fairly certain that more people are
injured by electricity-related accidents than gas-related
accidents.

It is harder to outrun an explosion than a fire.

Irrelevant if the fires happen much more often than the
explosions.

I submit that the reason why every pretty much gas leak and
explosion is reported in the media is because they happen so
rarely.