Slogans that can't be painted on the wall

There are two answers: 1. There is a wall on the bustling street. At first, the wall was white, spotless and very white. Later, with the erosion of the sun and rain, the wall began to fade and gradually turned pale yellow. Later, someone began to do something on the wall. Instead of painting it white, they scribbled on it at will, with everything. At first, people thought it was performance art, and it could also add color to the wall. But then, some uncivilized behaviors appeared. People began to resent this kind of behavior. But there's nothing to do. Finally, one day, a brave man wrote on the wall: "No graffiti on the wall, and offenders will be fined." Everyone couldn't help laughing when they saw this slogan. There is a feeling that a thief shouts to catch a thief. You'd better paint the wall white. 2, then the idea is to tell us to protect and care for the environment, but this method is not desirable and wrong. I'll write a draft, and you can add it. Xiao Ming sees people often doodle on the school wall. He can write some detailed descriptions of other people's graffiti and then want to change this situation. Then he wrote a word against graffiti on the wall. After returning home, he told his father that it is good for you to be responsible, but this method is not desirable, so pay attention to expression description. Then Xiao Ming accepted it humbly and cleaned the wall the next day. It is praised by the teacher, used at the end, but also to point out the topic in an appropriate way, sublimate the theme, and enhance the height of one's mind.