Shortly after that I purchased an explosive gas alarm for my shop as a precaution.
That's not a bad idea at all.
A number of years ago here in town there was a natural gas leak inside at a trailer park. The guy inside was VERY lucky, because the explosion basically leveled the trailer (good thing they aren't constructed very sturdily) and left him standing inside going "HUH??" It brought to mind the cartoons where Wily Coyote gets caught holding the dynamite he's trying to use on the Roadrunner. Funny there, but serious in real life.
