David Gillespie is a former corporate lawyer and investor and the author of the best-selling book, Sweet Poison.

Some years ago, David found himself working alongside a toxic human being, whom he now considers to have been a psychopath.

Psychopaths are typically people incapable of human empathy.

They tend to be charming in the initial phases of a relationship, then become parasitic and domineering.

In the workplace, their presence is often disruptive, and dangerous to the health of the people around them.

David has immersed himself into contemporary research into psychopathic behaviour, and developed some advice on dealing with a psychopath who worms their way into your life.

Further information

Taming Toxic People is published by Macmillan