what kind of a teacher and a human being is Crocker-Harris according to Taplow?

According to Taplow, Mr. Crocker Harris was a strict disciplinarian. Students were afraid that any misconduct might affect their grades. From Taplow's dialogue we also get to know that Mr. Crocker Harris was a man who strictly adhered to the rules of the school much unlike the other teachers. He never disclosed the results till it was announced by the headmaster. However, Taplow liked Mr.Crocker Harris as he believed that the man was not a sadist. He felt pity for Mr. Crocker Harris and described him as 'shrivelled up inside'.