Billionaire philanthropist, Virgin founder, and entrepreneur Richard Branson has used much of his wealth to help others—but one person he would never help is Republican presidential nominee Donald Trump. Branson published a piece on his Virgin.com blog about one of his encounters with Trump.

“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.”

Branson says Trump spoke only of this revenge and Branson found that “very bizarre.” He was baffled as to why Trump invited him to lunch to tell him this. Branson wondered if Trump was going to ask Brannon for money—and if so, Brannon said he would be come the sixth person on Trump’s revenge list because that was not going to happen.