Richard Branson's anecdote corroborates CB's view.
Some years ago, Mr Trump invited me to lunch for a one-to-one meeting at his apartment in Manhattan. We had not met before and I accepted. Even before the starters arrived he began telling me about how he had asked a number of people for help after his latest bankruptcy and how five of them were unwilling to help. He told me he was going to spend the rest of his life destroying these five people.