In this passage, Miss Tarango shares with her students exactly how being vague helped her. She essentially encourages them to carefully consider their words, and to figure out how to use language to their advantage—with a firm grasp of how to use language, they can even triumph over bullies like Barry. And by making Barry seem like a hero who tried his best, Miss Tarango also gives herself plausible deniability: she makes it seem like she’s not just trying to humiliate Barry, when really, that’s exactly what she set out to do.