There were constant surprises in store for one who shared a room with the Tucker twins. They certainly had the gift of infinite variety in the kind of scrapes they could get themselves into. They usually got out of scrapes as easily as they got into them by a certain frankness and directness that would disarm Miss Peyton herself. They didn't break rules, because they did things that nobody had ever thought of making rules about. The principal at Gresham was not so farseeing as the teacher in "Mary Had a Little Lamb," who seems to have made a rule about lambs in school: