Never refuse to do a kindness unless the act would work great injury to yourself, and never refuse to take a drink - under any circumstances.
Mark Twain (2017). “The Complete Works of Mark Twain (Illustrated Edition): Novels, Short Stories, Memoir, Travel Books, Letters, Biography, Articles & Speeches: The Adventures of Tom Sawyer & Huckleberry Finn, Life on the Mississippi, Yankee in King Arthur's Court…”, p.8122, e-artnow