My brother and I bought a Ouija Board at a garage sale when we were about 8 and 11, respectively.  The instructions on it were extremely vague, and I don’t think we were using it right.  It said that the damn pointer thing would “move around the board” and I was under the impression that the random twitches of our fingers were supposed to be enough to get the spirits talking.  No such effects observed.  I remember, out of boredom, starting to pretend to have random spasms of my hand that moved the pointer to spell out something, and my brother (nearly as much of a natural skeptic as I am, even at 8 ) accusing me of doing exactly what I was doing.  Busted.