Messy Class!

Every Sunday, well, almost every Sunday, the first thing we do is to clean up and arrange back our class. My god! Who are the people use our class? Well, I know that the class does not belong to us. It is the government properties, but, as we are using it now, we want it to be clean and neat. But every time, almost every day, our class is mess up by the other people. Is that the attitude of a TEACHER? Mess up other people class and just go like that? My god! I really hope people that use other people’s class or place will keep it clean and neat. If they want to rearrange the desk, ok go ahead, but please arrange back after use. Thanks very much.