"Ten to one bar one! Sell the monkey, boys! Sell the monkey!" (Ulysses)
"The ultimatum game has two players, a Proposer and a Responder, and an opening stake, which in this case was $10. The Proposer decides how to divide that stake, and if the Responder agrees both players receive their share. However, if the Responder disagrees neither player receives any money. A purely logical Responder would accept any positive offer, because receiving any amount of money is better than receiving nothing. Yet ordinary people often reject offers perceived as “unfair” [...]. For instance, splits of $2 or less are rejected about 50 percent of the time."
(Van Rooij & Van Orden, It’s about Space, It’s about Time, Neuroeconomics and the Brain Sublime, JEP 25.4 (2011))