Stockdale on Stoicism 13

Another attitude-shaping remark: When in tight straits, you should stifle what's in you of that Student Body President personality, of give-and-take, openness, being responsive, offering counter-options rather than outright refusal to go along. 

We called people who acted like student body presidents "players" in prison, and tried to prevent them from digging their own graves.

Enchiridion: "If a person had delivered up your body to some passer-by, you would certainly be angry. And do you feel no shame in delivering up your own mind to any reviler?"

—from James B. Stockdale, The Stoic Warrior’s Triad