But being calculating and analytical to a fault did hurt her. Wendell and Monica Wilkins were just a middle-aged couple with their own dental practice in Australia. To Hermione, they were the parents who baked her a unicorn cake for her third birthday, taught her how to ride a bike, and bought her new books every Sunday. They’re also the parents who have no memory of such things since she made the ultimate logical choice to erase their memories of her in order to save them from Voldemort and his Death Eaters. At the time, protecting their lives at any cost made the most sense.