When I was young punk and building a deck on the back side of mom's trailer, I managed to cleanly remove (with a post hole digger) a 6" chunk of 1/2" plastic gas line from the incoming feed, before our meter. (Prior to One-Call, of course.)

Saturday evening, mid-summer and I've got LOTS of gas blowing from a hole in the ground. Ran to gramma's place and called (I don't know...911?) for help. Service guy shows up 20 minutes later and proceeds to lean down in that little hole and install a 2 piece splice and then test with soap solution...all while smoking a cigarette. Said the gas was too high a concentration to blow up!

Now I'm not a rocket scientist, but I do gas concentration calc's a lot...and even then I knew what LEL's and UEL's were. At least enough to understand that SOMEWHERE in the area he had to walk through to get to that "leak".

I watched excitedly from around the corner of the house, about 100 feet away...luck bastidge.