In BDSM, servitude is performing tasks and following orders as an aspect of being submissive. Some submissives gain pleasure and satisfaction from performing services for their dominants, such as serving as a butler, waitress, chauffeur, maid, or houseboy. In other situations, the submissive may also enjoy being collared and leashed, and in some aspects being treated like an animal. Leashes can also be attached to piercings.