Blurt, Master-Constable (c. 1601), Act iii. Sc. 3. Compare: "I smell a rat", Ben Jonson, Tale of a Tub, act iv. Sc. 3; Samuel Butler, Hudibras, part i. canto i. line 281; "I begin to smell a rat", Miguel de Cervantes, Don Quixote, book iv. chap. x.https://en.wikiquote.org/wiki/Thomas_Middleton