Excessive rules create an ugly game whereby students try to work their way through loopholes, which just necessitates more rules. Pinning down student behavior is difficult. The more rules you write, the deeper the hole you dig. This approach exasperates everyone. The school winds up focusing on outward behaviors that are usually far removed from the real issue, which is the heart or attitude of the student.
Every student has a right to a safe environment that is conducive to learning and free from bullying and classroom disruptions. No student will be allowed to intimidate other students or disrupt the classroom. But keeping in mind that we are all sinners still dealing with the “old man,” there is a place for grace. The primary goals of discipline are restitution, reconciliation, and repentance, and in the long term it will lead to either reform or removal. The length of that term depends on two things: the attitude of the child and the seriousness of the problem.