He's describing his straight-A career at university going in to his last exam expecting to ace it, when the professor gives one question: "What is the name of the person that cleans this room?"
Describía su carrera universitaria con promedio de 10, en su último examen, que esperaba aprobar sin problemas, el profesor le hace una pregunta: “¿Cómo se llama la persona que limpia esta habitación?”