I'm sure I've seen a machine specifically designed to chew through bricks, stone, steel and pretty much any other type of building rubble. Although not exactly common, and a little on the large side, it could be something for your occupants to seek out.
I believe the rotary teeth wear out fairly quickly though, so finding spares could be a mission all of it's own.
There are similar machines I'm sure most of us have seen designed to deal with road suface as well, stripping off the top inch or so.
The end result is peices about half the size of a golf ball and relatively easy to shift with a shovel and barrow.
__________________
If it moves, shoot it, if not push it, if it still doesn't move, use explosives.
Nothing happens in isolation - it's called "the butterfly effect"
Mors ante pudorem
|