When a student becomes visibly agitated, you must maintain a safe environment for the other students. Remain as calm as possible; your demeanor can sometimes diffuse the situation. You should have a plan for dealing with violence that you discussed with students early in the year. You should use the call button for assistance or have a designated student get help from another teacher. Send the other students from the room if it appears they could get hurt. If a fight breaks out in the classroom, follow your school's rules concerning teacher involvement as many administrators want teachers to stay out of fights until help arrives.