What do you gather about Crocker-Harris from the play?

Explanation

Mr Harris is a teacher who would not compromise with the rules and regulations to suffice the sentiments of the students. He believes in the fair assesment of his students and is not swayed by emotions. He is not a sadist, but strict in performance of his duties. Even on his last day at school, when he is over busy with his own affairs, he does not neglect his duty towards the students.