That's not true. Too often students with behavior problems are looking for entertainment, rather than education, or may be too needy of the attention their misbehaving brings. Misbehavior is inevitable. This system can be implemented anytime during the year, but ideally during the first weeks of school, before the newness of the year starts to wear off. I easily spend a good part of the first month of school integrating this into my curriculum.
Every lesson is a chance to practice.
I am not domineering or dogmatic, but I am in charge. I must care about my needs as a teacher first, so that I can then care about my students' needs. If I become too busy managing behavior, I will not be able to teach, and you will not be able to learn. We must work together to have a strong class. It's not fun to deal with a peer's behavior problems, but we are a team and we must help one another.