Taming Toxic People - Proteus Leadership | Book Review By Richard Dore
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“When companies let psychopaths into the top job, they rarely recover. When countries let it happen, the consequences for all of us are even more dire.”

Taming Toxic People

The Science Of Identifying & Dealing With Psychopaths At Work & At Home

David Gillespie is a corporate lawyer, author and software cofounder with no medical or psychological qualifications, however in his book, Taming Toxic People, he states that 5 to 10 percent of the population qualify as psychopathic. In fact, Gillespie says that psychopaths are so prevalent that he is “absolutely certain that there is at least one in your life,” especially in our workplace.

Gillespie is the author of many books, including Sweet Poison: Why Sugar Makes Us Fat, where just like he does in Taming Toxic People, he writes with conviction, making bold and honest statements, even without qualification in the subject matter.

While a non-expert writing on the subject of psychopaths would usually make me sceptical, I loved Gillespie’s book, it is brilliantly written with compelling yet disturbing messages.

Gillespie says that for years, he was perplexed, confused and frustrated that psychopaths “were just very, very difficult people to work with” and he wondered why he “couldn’t predict what they would do?” However, he soon realised, “not a single person could say they had never experienced it (a psychopath). Many did not know that they were describing a psychopath, but believe me, if you have been, or are, a psychopath’s victim, you are not alone.”

Having the ability to describe and define their behaviour, Gillespie was able to realise that psychopaths are in fact very predictable by nature and as such, there are many things that can be done to deal with them and lessen the impact and damage they typically cause. However, it will get ugly and fundamentally he states, you can “never change a psychopath.

Gillespie doesn’t concern himself with psychopathic criminals and killers in his book nor is he trying to create an academic piece of writing. Instead, he wanted to write an ‘easy to understand guide’ to dealing with psychopaths. The psychopaths he is talking about in his book are what he calls “everyday psychopaths”; the colleague, boss, partner, child, neighbour or client who already exist in your life and who  “confuse the hell out of us normal people” and who can “tie us in knots for months, years or even decades.”

Psychopaths will charm you at first but then they will turn on you, isolate you, lie to you, make you doubt yourself and your abilities by creating a campaign against you, spend your money and take your resources. They will manipulate you and dismiss you without any remorse or guilt and won’t give you a second thought, unless they want something else from you to benefit them. Essentially, “their primary motivation is to extract loyalty and resources from you, and servitude.”

According to the Diagnostic and Statistical Manual of Mental Disorders (DSM) the term psychopath is not defined as a legitimate psychological term.  However Gillespie wants us to embrace the word psychopath because its definition is simple, universally understood and to the point.

Gillespie essentially divides the world into 2 categories:

1. “Empaths” – people who have the ability to empathise with others.

2. “Psychopaths” – people who have absolutely no empathy.

Gillespie identifies a psychopath with one key characteristic, that they have “Zero Empathy”. While at times, all of us empaths (non-psychopaths) find ourselves being charming, self-obsessed, emotionally manipulative and shallow, we still show empathy. Psychopaths NEVER show empathy. In fact, psychopaths are, “missing a part of the brain called a spindle neuron. People who don’t have enough of them tend to be psychopathic.” In fact, “by the time we’re four, we have formed our full adult population of spindle neurons. So by the age of four, you should be able to tell if a person is likely to be a psychopath,” or not. So yes, even your child may be a psychopath!

Interestingly, people think of psychopaths as being evil, however Gillespie debunks this by stating that psychopaths are not evil, as they have no concept of right or wrong. They don’t behave badly to hurt and harm you, that is just a byproduct of their behaviour. Instead, they are simply pursuing their self-centred narcissistic goals.

An important thing to acknowledge about psychopaths is that they believe they are superior to all other people and the role of everyone else is to deliver psychopaths rewards and behave accordingly. Added to this, psychopaths with their incredible ability to charm and lie, will naturally be attracted to workplaces where they can be fast tracked into senior roles. In fact, the results from the ‘Great British Psychopath Survey’, shown in Table 1, outlines the professions that psychopaths are most likely and least likely to be found in.

The one big game changer for me when reading Gillespie’s book is that psychopaths just don’t care! Having this knowledge then requires us to shift our approach to dealing with psychopaths. As an empath, the challenge becomes to stop treating them like other empaths i.e. trying to be reasonable and engage with them emotionally to build a long-term relationship. Instead, with psychopaths, you need to be brutally detached, have no emotional connection with them and extract them from your life.

While provocative, there is a practicality to Gillespie’s book as he provides the reader with a comprehensive guide to surviving a psychopath, both at work and at home. His key message is to run like hell and if you can’t run or get rid of them, accept the reality and limit their chances of hurting you. Unfortunately, if it is your boss that is the psychopath, you “must leave your passion for your job at home. You must become a well-mannered, honest, polite, compliant, precise employee who does whatever they are told no matter how pointless.”

In his book, Gillespie likens a psychopath to a piece of enriched uranium. “Ignoring it or handling it badly can have horrific consequences, but if you are careful and design the system containing it well, it can produce enormous benefits.” Gillespie gives the reader the approach and system to do just that by controlling the impact of psychopaths as an organisation ‘with honesty, transparency, and structured decision-making’.

I highly recommend that every leader reads Gillespie’s book as it is ultimately a “DIY guide to building a genuinely, psychopath-proof community and genuine psychopath-proof you.”

This book will disturb you and in fact it may haunt you, but it will help you forever psychopath-proof your workplace and home and never tolerating the toxic and damaging consequences by allowing the many psychopaths into our world.


Proteus Leadership is one of Australia’s premier leadership training and development companies. Proteus Leadership provides leadership courses and management training to a range of industries and assists organisations to build positive workplace cultures, implement change and Create Great Leaders. Proteus also facilitates a range of world-class management courses, workshops, conferences and events across Australia and beyond with the sole purpose of bringing leaders together to connect and grow.

“Our core purpose is to Create Great Leaders that will in turn build Great companies and develop Great teams.”

Richard Dore

Book review by:
Richard Dore - CEO, Proteus Leadership

David Gillespie