Imagine looking out at your back yard late one night, and seeing a
group of four or five people digging around with picks and shovels.  When
you get up the courage to see why they're there -- after all, they're the
ones with picks and shovels, lord knows what they're willing to do with
them -- they tell you that one of them had had a psychic vision of a
wonderful treasure buried on your property.  Just beneath the grass seed,
peat moss and wood chips, they claim, is a box containing the Lost Ark of
the Covenant.  Opening it will inaugurate a New Age of peace and harmony.
They even offer to let you help dig.  What do you do?
          a) Help dig
          b) Call Geraldo Rivera
          c) Bring out a shotgun, claiming that you're Captain Kirk, and
that you, too, have had a psychic vision that the vanguard of an invading
army from Arcturus would begin by digging tunnels in your back yard.