in EN in. 1, Aristotle acknowledges that in certain cases of circumstantial constraint the good person may act in a deficient or even a ‘shameful’ way, doing things that he or she would never have done but for the conflict situation.
Nussbaum argues that Aristotle’s concept of circumstantial constraint reveals that even virtuous agents can be compelled by situation to act badly, embedding tragic necessity within ethical theory.
, The Fragility of Goodness: Luck and Ethics in Greek Tragedy and Philosophy, 1986thesis