He proves to be adequate for his day-to-day living but cannot fulfill his deep desire for revenge. When Ah Pao is found in possession of the Ghost Faced Killer's symbol, he is expelled from school. While he leaves in exile, his teacher is forced to shut the school down in fear of his students being killed.
He fulfills the necessities of his everyday life but cannot satisfy his intense desire for retribution. When Ah Pao is discovered to possess the Ghost Faced Killer's emblem, he is expelled from school. As he leaves in isolation, his teacher is forced to close the school due to fear that his students will be put in harm's way.