Reading student papers, blue books, etc., a form of torture ... a matter of rubbing an iron file over one's teeth, or holding urine in one's mouth, or having the racket of a bulldozer in one's ear for an hour or two on end.

Reading student papers, blue books, etc., a form of torture ... a matter of rubbing an iron file over one's teeth, or holding urine in one's mouth, or having the racket of a bulldozer in one's ear for an hour or two on end.