How does one evaluate school performance in accordance with the double movement of contemporary ethics ? In the « Bart gets an F » episode, Bart’s scores on a multiple-choice exam leave him on the verge of having to repeat fourth grade. But an unexpected twist in the story reveals that Bart uncovered something that places his teacher in the position of having to make a decision about whether to keep Bart quiet or not. Can Edna react beyond what is given in the scene they both inhabit ? What lessons does the vignette offer regarding the complexity of choosing the appropriate criteria to evaluate a student’s knowledge ?