The worst behavior I see the most is lying to others. People may have lied at least once, but there are people who think of lying easily and often. Moreover, I have seen people who pretend to be kind and nice in front of them without showing that they don't like someone, but when the person is gone, their facial expressions change and curse the person. While I was embarrassed to see a person changing quickly, I also began to worry that it would be the story of the person. In addition, the worst behavior is saying bad things about someone or even telling others things that didn't exist. In other words, it is the act of creating fake news or creating rumors. Because such behavior makes the person a bad person by becoming a person who has told a story or done something that he or she has not even done. I've also been a bad person once, and with the help of many people, I've been cleared of being a bad person, but I think it was a very therrible time when humans didn't believe.