The document discusses confirmation bias and provides examples of being biased. It describes confirmation bias as favoring information that agrees with one's existing beliefs and ignoring alternative possibilities. The author reflects on experiences in secondary school where they showed confirmation bias. In one incident, the author initially took their friend's side in a dispute over missing money without evidence, realizing later they were biased. It was discovered the friend had been stealing items, and the author felt guilt for being biased against the victims and friend's disorder that caused the behavior. These experiences taught the author about the dangers of acting biased and importance of considering multiple perspectives.