From Narcissist to Control Freak: Boss Types You Should Never Work With

Did you know that in Spain there are 1.6 million work absences due to short-term disability every day? While these numbers cover various causes, it’s true that mental health–related leaves (anxiety, stress, burnout, etc.) are becoming increasingly common in today’s workplace. And this is where the quality of the leadership team takes center stage: toxic leadership not only erodes the work climate, but also significantly increases the somatization of stress and the decline in team well-being.

Rubén Fornell, CEO of Música Creativa, psychologist, and strategic advisor; analyzes the most common leadership behavior patterns in organizations and their impact on executive culture. He also develops this work on his newly launched YouTube channel, under the title “The Psychology of the Leader.”

The Five Types of Toxic Bosses and Their Behavioral Patterns

Drawing on research in organizational psychology, such as the studies on the Dark Triad by Paulhus and Williams (2002) or Grijalva and colleagues’ analyses of leadership effectiveness (2015), Fornell defines five key profiles:

1. The “Narcissist.” Driven by the need for public recognition and spotlight. While they may provide an initial vision, excessive grandiosity triggers the so-called “hubris syndrome.” In daily practice, they tend to appropriate the team’s credit.
2. The “Machiavellian.” Noted for instrumental and fragmented use of information, creating different narratives depending on the interlocutor to consolidate their hold on power.
3. The “Cold Predator.” Reflected in research on psychopathy in corporate environments. Noted for their coldness in critical situations and for making decisions without personal emotional impact.
4. The “Insecure Controller.” The most widespread profile, especially among small and medium-sized businesses. Their behavior does not stem from grandiosity but from anxiety and fear of failure, manifesting in hyper-control (micromanagement) that turns task approval into a bottleneck.
5. The “Unpredictable, Volatile Leader.” Framed in what Bennett Tepper defined as “abusive supervision.” It creates dysregulation and emotional instability, forcing the team to shape their workday around the leader’s mood.

How to Manage a Toxic Boss

To confront these challenging dynamics, Fornell, as an expert in human behavior, shares three universal containment rules:

1. Name the behavior, not the person. Replace generic adjectives (“he’s toxic,” “he’s a tyrant”) with verbs and concrete facts (“he humiliates the person bringing bad news to the meeting”), which allows you to predict and point out the problem objectively.
2. Document facts with dates. Keep precise records (dates, times, emails, data, and witnesses). In the face of leadership or HR, verifiable data prevail over subjective perceptions.
3. Set observable and sustained boundaries. Maintain consistent behavioral responses. For example: “When he shouts at me, I leave the room and we resume later.” An unkept boundary validates the supervisor’s pressure.

Additionally, the renowned psychologist and business consultant also shares specific management strategies to follow depending on the leader’s profile:

• Facing the “Narcissist.” Give them visibility on the secondary matters, negotiate the relevant issues privately, and frame requests in their own benefit. For example: “The idea is yours and I want it to succeed: for that I need your approval on this.”
• Facing the “Machiavellian.” Enforce “forced clarity,” that is, confirm all verbal agreements in writing and inform them by email. For example: “To avoid misunderstandings, I’m sending you a written summary.”
• Facing the “Cold Predator.” Maintain distance, act with calm, and resort to formal organizational procedures or HR.
• Facing the “Insecure Controller.” Reduce their anxiety by providing predictability—share information upfront and flag risks before they ask.
• Facing the “Unpredictable, Volatile”. Separate the conversation from emotional outbursts and postpone the debate to calmer moments. For example: “We’ll talk about this this afternoon, when we can look at it calmly.”

“When behaviors persist after months of setting boundaries, interfere with rest, or violate ethical principles, staying can become an intolerable drain. In these cases, and whenever possible, it is advisable to plan a structured exit, with a financial runway of three to six months and a prior reactivation of your network, and seek specialized professional support if burnout symptoms appear,” notes Rubén Fornell. “Leadership teams should remember that replacing an employee can cost between 50% and 200% of their annual salary, according to Gallup and SHRM estimates, so tolerating these leadership patterns also has a direct cost on the bottom line.”