How well do you think one would cope with being buried? How much difference would it make if you coated the thing with a heavy sealant (bitumen, truck bedliner paint, etc) first? How much weight can they support on top?
I’ve long had a vague dream of using shipping containers as the basis for an earth-sheltered hobbit house. Dig hole, drop container in hole, grow a lawn on top, dig a tunnel for an entrance.
