This chapter concentrates on a spectrum of writings and practices within popular literature that reflect on good and bad conduct in Spain through the nineteenth century, including some of a type of which Don Estrafalario would almost certainly have disapproved. It highlights a step-change in thinking about right and wrong by referring to the reception of norms of popular literature by Isidora the protagonist of Galdós's novel of 1881, La desheredada. In this novel, consonant with the social and progressive concerns of the late nineteenth century, but informed by scientific advances, the central issue is the possibility of civilization winning out over heredity. In the tradition of the mujer varonil, the assumption of man's clothing bestows freedom of action. It also appears to release the wearer from conventional reticence of action, and Teresa dons masculine clothing.