My entire first grade class suffered from a fear of the Man in the Boiler Room (yes, all of us. Seriously.), a ghost supposedly living in a boiler room in the school house.
Most, if not all, of us belived that both of the school houses, one of which was an old courthouse, the other of which was a larger villa, were haunted. Actually, to this date, I'm not all convinced the larger of the two wasn't haunted. The cellar levels of both houses were fucking terrifying at night, even the teachers didn't like being there after dark.
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That, and a crippling fear of spiders...
Oh wait, I still have that one...