In September, police in Bonney Lake, Wash., were seeking "Dale," who had been reported hanging around the high school, trying to befriend male athletes. In the most recent incident, he lured a boy to the library, offering help on a term paper project, but when the boy declined and walked away, "Dale" jumped on his back and asked for a piggyback ride. (Fondness for piggyback rides is not a widely practiced obsession, though the legendary illustrator R. Crumb liked to receive them in lieu of sex, according to an ex-girlfriend in the 1994 movie "Crumb.")

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