It's good to keep your composure when you are upset.
Stacy is giving a presentation at work, and one of the coworkers is berating her mercilessly.
Stacy wants to get one over on her coworker.
Stacy calmly explains how the coworker is wrong and exactly what is wrong with his reasoning.
Stacy unloads a torrent of screaming and profanity at the coworker.
Stacy's coworkers and boss see her as very competent and knowledgeable, and she goes far in the workplace.
Stacy is fired and has problems finding another job due to her reputation as an unstable person.