rice please, no fries
I can’t believe these neighbors smelled gas and no one checked it out.
Worked NG 35 years it is safe if not tampered with. Sounds like System was tampered with maybe to circumvent a terminated line! Depending on the age of the line electrolysis could be a factor in an underground line!
Or when I was a kid a family went out of town over Christmas holiday and left a burner on not ignited and it blew an apartment building up and killed 7. But that was 50 years ago.