1x5 - My Wife and Kids

Jr. gets an F in Algebra and forges it into an A. Claire finds out about it and soon starts to blackmail Jr. so she won't tell their parents. But Michael and Janet are smarter than that and decide to teach Jr. a lesson by ""toying"" with him. After numerous attempts, Janet decides to take her own actions on Claire, while Michael still tries to make Jr.'s guilt speak out. That only happens when Michael has Jr.'s teacher over.