They were small, brightly coloured, happy little creatures who secreted some of the nastiest toxins in the world, which is why the job of looking after the large vivarium where they happily passed their days was given to first-year students, on the basis that if they got things wrong there wouldn't be too much education wasted.
Terry PratchettShe was, in fact, quite a pleasant looking girl, even if her bosom had clearly been intended for a girl two feet taller; but she was not Her. The Egregious Professor of Grammar and Usage would have corrected this to "she was not she," which would have caused the Professor of Logic to spit out his drink.
Terry Pratchett