“One of his favorite words is “unfair’. Let’s see what he does, because you can be sure he will do something.”
My sister and I were discussing this at lunch. She is re-reading “The Art Of The Deal”, and he mentions things like he always gets even, revenge, keeping lists, etc.
Donald Trumps opinion on Revenge - Audio Book Excerpt - Think Like A Champion
https://www.youtube.com/watch?v=rd0AdArPjqU