There's no resolving the question of whether or not Descartes was being completely sincere when he wrote to the deans and doctors of the Faculty of Sacred Theology in Paris seeking their protection.
A noticeable theme in his story telling is that he poses a question, more often then not a moral dilemma, describes a story that's perfectly related to the question, the story ends in a complicated answer, he then asks another question following the story, and then admits that there is never a clear answer to the questions he's been asking. He usually states that his questions either have no resolve or haven't been explained by anyone yet. Which isn't really helping resolve the issue of violence in school.