Prologue: Quiet room full of students taking final exam, where they have been hard at work for 8 minutes or so.
Opening credits: Thought bubbles over their heads.
Act 1: Late student enters. Takes exam and sits down and begins to work. An hour passes.
Act 2: Late student asks to go to the bathroom. Goes, and returns a full 15-minutes later. Prof gives student the side-eye as s/he erases several answers and chooses new ones immediately upon sitting back down. Having not accompanied the student to the bathroom, prof can't prove anything. Silently, sarcastically thanks student for ruining the bathroom for everyone.
Act 3: Late student signs honor code, turns in paper and leaves. Prof looks at paper and sees that of the 5 answers student changed, 4 became false following erasure, and one became true.
Post-credits scene: Prof. is sitting at a diner table with Wonder Woman and Thor. "Kids these days!" she says. Everyone has a good laugh.