My Sister, My Sitter

This is an outrageous episode. Lisa becomes a masterful babysitter and she has kind of a formula that works. This leads to Marge and Homer leaving and putting her in charge. Bart is so angry that he goes to extraordinary means to sabotage his sister. Her best method would have been to wait until the parents were out the door and tell him to do what he usually does. But she sticks to her guns and she is nearly destroyed, along with Bart and Maggie. It is an intense episode, but it shows that finding babysitter trumps anything about the babysitter herself.