I expect he's human, rather than Homo Economicus. Many humans, when treated with contempt and addressed as if he's a gullible moron by someone who patronisingl

I expect he's human, rather than Homo Economicus. Many humans, when treated with contempt and addressed as if he's a gullible moron by someone who patronisingly tries to lead him into a decision explicitly to that patronising jerk's advantage, often dislikes it to the point of generating what we might call the "fuck you, I won't do what you tell me" response. People who play poker yet somehow aren't familiar with humans will struggle playing against them.