Kramer and Mickey are playing Rock, paper, Scissors. Kramer plays "paper" while Mickey plays "rock". Mickey tells Kramer he wins because "nothing beats rock". The rest of the rounds are then a draw because Kramer and Mickey both only play "rock."

Charlie plays the Ultimatum game with Nikki to demonstrate that people's responses to unfair treatment are not logical.

Charlie and Marshall explain the logic of a truel (a duel among three people).

The teacher poses to his students the Monty Hall problem, which investigates the probability of choosing a correct answer given three options and the subsequent probability of changing the original choice. The teacher explains why his students' instincts are not correct.

Charlie and Don try to make the three suspects talk using the prisoner's dilemma. They convince one to turn on the other two by giving all three a risk assessment of who is the one who has more to lose by going to prison.