So far: - Takers: mentally healthy people, but heavily biased towards self-benefit and competition. Never a volunteer, tries to profit from every little intera

So far: - Takers: mentally healthy people, but heavily biased towards self-benefit and competition. Never a volunteer, tries to profit from every little interaction and sees everything as a zero-sum game. Only interjects in a conversation with the objective of gaining social rank, doesn't see value in altruism and collaboration, and is rude or dismissive to people considered lower ranking. - Neurotics: people characterized by high anxiety, low tolerance to frustration, envy, depressed mood, loneliness, etc. In the "Big 5 personality traits" system, neuroticism plays against any person in any professional setting. - Groupthinkers: people that form cohesive groups that collectively become biased towards group harmony, becoming incapable of applying critical thinking in problem solving or having a difficult conversation even if it's in the collective best interest.