Effective discipline plan

In Harry Wong's book, he mentions how important it is to have a plan, and if you don't, you're setting yourself up for failure. I believe he is right. This plan has to do with the rules and consequences you set up. If you have no plan to follow, it's easier to become frustrated and start disliking being a teacher. It'll cause problems not just for your students but for yourself. It's vital for students to know what is expected and I'd they do not follow the rules, that they know the consequences. That way, giving them a sense of responsibility. You as a teacher, must give consequences, either good or bad. It is a duty, no exceptions or the students will not take it seriously.