How would you describe Mr Munnings in private peaceful?

Mr Munnings is an authority figure that is strict and unsympathetic. He is described as “bald and fat” and looks “like a rat.” He is the headmaster and teacher at the boys' school and seems to relish his role as a disciplinarian. He takes pleasure in punishing the boys and uses harsh language and corporal punishment to maintain discipline. He is always looking for opportunities to catch the boys in some infraction and takes great delight in punishing them. He is a cruel and sadistic person who shows no compassion or mercy for the boys in his care. He is a symbol of the oppressive and authoritarian environment of the school.