The way other people talk about you can totally affect the way you look at yourself. I remember one time, my teacher made a joke to a student she was really friendly with but the girl really took it personally and transferred out of the class. It was good because teachers probably shouldn't be crossing that line—making personal jokes about students—but it really affected this girl and our whole class. It went from being a fun class to one where everyone was tense. We also didn't want to feel like adults were judging us.