 Here Claudia and Laura have created a bilateral covenant by exchanging promises. But because Claudia has already performed her part of the covenant, and Laura knows this, Laura stands in the position of the Foole and can either perform (P) as the covenant requires of her or aggress (A) by breaking her promise and exploiting Claudia’s earlier performance. As the Foole contends, given this payoff structure, A is Laura’s unique Bayesian rational choice.