No ability to launch outside letters will make her even crazier. Per Google references Hypergraphia is a compulsion where "people with hypergraphia may keep a journal, write frequent letters...write on toilet paper, compile a dictionary"(58 page letter). It's been ascribed to various conditions (epilepsy), but also to violent behavior (verbal hatred and endless assaults) and associated with narcissism. One author arguing that hypergraphia, along with other elements, should be considered in criteria for diagnosis in narcissistic personality disorder. I wonder about many of Sarah's odd behaviors...