You have fond memories of your childhood and all the books, music, films, tv series and other clean fun you enjoyed back then, in those more innocent days. But then, either while you are still a child or when you become an adult, some of these precious childhood memories are suddenly crushed. It turns out that a person you always trusted before has a darker side. You suddenly discover a circus clown smoking a cigarette between takes. It can be that friendly children's TV show host who is suddenly arrested for criminal deeds. Or those child actors you enjoyed seeing on the screen turn out to be drug addicts or start a career in the adult industry, or far worse. Or maybe you find out that your favorite children's author mistreated his own children badly.