Safe Sane and Consensual is a code of practice adopted by the BDSM community to define that all session are carried out in a Safe, Sane and Consensual fashion. Safe - used in the BDSM and mistress community as a watch word, a word used to control a session and its limits. Sane - Sessions to be conducted in a sane and safe fashion. Consensual - Sessions have the full consent of both the slave and the Mistress.