My point is, apologies are over-rated. Any apology someone has to ask for or coerce is no real apology. Hint, if you are truly self-secure and self-assured, you don't care what other people think of you. You don't care if they apologize or not because they don't matter. Running around worrying about or feeling like you're owed an apology is a sign of weakness and insecurity.
When a teacher has the nerve to walk out on a class that he knows is not there to learn, then I will retain some hope.