Hearing that there was some compus violence in our school, I was shocked then came to consider what we can do to protect ourselves from that danger. Well in my opinion, we can start to do this from thest two things. Firstly we should enhance the security guard from the school. The security guard must check the ID for everyone who is entering the school. They have to find out who they are, what they do for to the school and what they bring. Each one of them should be recorded with their name, whereas and so on. Secondly, the students should also protect themselves. They should improve the idea of safety. Be cautious when they find something irregular. Once the violence happens in the school, calling the police is the first thing to do. Stay where they are until the policeman comes to rescue them. In a word, no regardless of school and student, both of them should strengthen the security. Thanks