““This flew in the face of economic theory. The offering party was saying, “I’ll keep seventy dollars and give you thirty.” And the other party was saying, “No. Screw you. I’m rejecting this deal, even though I’ll have to give up my thirty.” Why? Because the person rejecting the offer had a visceral feeling that the split being offered wasn’t fair. That the person dividing it was being selfish and greedy, and they wanted to punish him. They were punishing themselves as well, but they were willing.””
