Daniel Houser imparts a lecture on human conduct when rewards and punishment are a variable. During the analysis, special attention is drawn to the psychological impact of receiving trophies as a signal of status. This behavior dates back to the most primitive ancestors and is more important for men.

The thesis on rewards and trophies is substantiated by different experiments among women and men. An explanation on how the tests were conducted is provided, as well as charts containing their results for a better understanding. Finally, Houser includes the additional variable of betrayal aversion, addressing several questions in this regard. He concludes with a comparison between men and women on the subject of betrayals.