It's wrong for parents to mistreat their kids.
Hank was upset with his son Bobby for his report card.
Hank wants Bobby to learn something.
Hank decides to get Bobby a tutor for school and make him study.
Hank locks Bobby in his room until his grades improve.
Bobby's grades improve over time as he learns more about the subjects.
Bobby's grades do improve but Bobby doesn't wanna talk to Hank.