The thing happen when I went to work in this morning. July is very hot in beijing, this morning I went to work as usual. I was so lucky got a air-conditioned bus. After driving there was a thing happend.Two studers were chatting rely on handrails, I was sure they did not speak loudly. But a middle-aged woman yelled at them suddenly, she believed that their chatting like noise and disturb her. The woman sound was very horrible, however the students did not say anything.Then everyone stare at the woman. I really dislike that woman, if I was the students, I will argue with her.