[COBOL2Java]

Could be nothing more than a do it your selfer with some sloppy wiring, couple of old paint and varnish cans in the basement and some old trenching around a sewer line.

Same as my house.

You got tunnels under your house? How far do they go?

[T-Bone Texan]

I have a 1960s-era fallout shelter under my lawn in my back yard.

It came with the house.

For the record, I was already kooky before I even owned it.

[caltaxed]

Only had some digging around a new sewer line that I had to hide from the building inspector. He saw non-permitted construction at the front of the house driving by and red tagged my job. It has since been repaired after documenting everything they knew about with the city building department.

The sewer line was at the front of the house and took a few hours of digging.