:( sorry for your loss. I think most of us have had to do that at one point or another, though. If you care about cosmetics, you can build the earth wall a little on the thick side and put wood/stone/whatever on the outside to make it look proper. You may also find that the paved road or other retexture or gives a pleasing look. Even if they go aoenuts in there, they won't break the externals if you go 1.5M thick or so.