The pseudonymous Wizard of Oz had dedicated an entire chapter of his book to Albus Dumbledore; the author seemed to think he was well-intended but growing senile, and his hiring of Severus Snape was, if not Exhibit A, at least Exhibit C. The man hadn't even had the decency to pretend he'd been bewitched when he'd carried out atrocities for Voldemort; Dumbledore had simply explained that his terrible crimes were committed to maintain his cover, and he had enough political power to ensure the Wizengamot would accept that excuse. Complaints against Professor Snape had been piling up ever since, but Dumbledore ignored them, simply insisting, "I trust Severus Snape."