A venture capitalist was interviewed in a podcast. He said that he saw an entrepreneur with a chip on their shoulder as being a positive because when the brown stuff hits the fan, they are the ones who will knuckle down and fight through.

In this episode, David explains why it is the same with presenting. Being abrasive, even slightly aggressive, shows deep passion and that is what people buy into.

He also shares a fantastic example of how he 'made' a Managing Director be more abrasive, making a client feel slightly uncomfortable in the process and in so doing, land a £75m ($100m) contract that he was sure they had lost.