Theodore Nott knew the Dark Arts very well, practiced them, and had never been ashamed to have had a Death Eater father sentenced to Azkaban. Most of the time, he appeared disappointed by the walking failure that his son was, and Trevor was sure that if he had told him about the Children of Salazar, he would have been enthusiastic about their existence. However, he hadn't told him because he feared it would be just another way to feel like a failure in front of his father. In any case, Theo hated being wrong, and had already assured Draco Malfoy that neither he nor Trevor were accomplices of the old Nott.