Build your vocabulary with Captain Blood
In Raphael Sabatini's Captain Blood, Blood gives some of stolen treasure to a Spanish official in order to keep up a deception. His pirate crew accuse him of supererogation — "the performance of more work than duty requires".
Keith Johnstone's Impro: Improvisation and the Theater is, in all fairness, not as stirring as Captain Blood, but Johnstone mentions that one of his thought-provoking insights arose from observing kittiwakes. A kittiwake is a type of sea bird that for all I know I've seen and mistaken for a seagull. Whether kittiwakes are also able to transcend our universe by elevating athletic training to an art form is a subject for further research.