posted on Jun, 17 2010 @ 05:58 PM
I still think it's an old hoax most likely from a game, something similar to dungeons and dragons. thats a guess though.
But you know DUMB could stand for Deep Underground Military Base, theres a lot of conspiracy stuff about those. Unfortunately that would tie this in
with the UFO/Aliens crowd, which makes it seem even more Hoaxy yet.