Many years ago, when I was working for a family owned restaurant, and putting in outrageous hours, we had a guy who thought he was all that AND a bag of Cool Ranch Doritos. He felt he was being "disrespected" by the rest of the staff because none of us were impressed that he had just graduated from culinary school.
He wrote a similarly long missive to the owner of the place, dropped it on his desk, and stood there tapping his toe. The owner looked him in they eye, laughed out loud, dropped it in the trash unread, and showed the young man the door. That's what HAPPENS when you act like a thundering fool at work.

