The Chafetz Chaim discusses the sin of ona'at devarim, hurting someone with words, and emphasizes the severity of humiliating or embarrassing someone in public. He then gives an example of a conversation of lashon hara and illustrates how each person involved transgresses multiple negative commandments. He cautions against doubling down on incorrect assumptions and instead encourages admitting mistakes to avoid further transgressions. Overall, each time a person reiterates lashon hara, they risk fulfilling additional prohibitions and should try to save what they can by stopping the cycle.