A student writing a final exam in large room goes over on time.
When approaching the front of the room to hand in the exam, a proctor informs the student that the exam is late and cannot be accepted.
The student says: "DO YOU KNOW WHO I AM?" to import some great significance.
The proctor answers "No," as if he did not care.
At which point, the student quickly thrusts his exam into the middle of the pile on the desk and runs away.