A trip sitter is sometimes called a psychedelic guide or guide, although this term is more often used to describe someone who takes an active role in guiding a drug user's experiences, while a sitter merely stands by to discourage bad trips and handle emergencies, but otherwise does not take on an active role. Guides are more common among spiritual users of entheogens. Psychedelic guides were strongly encouraged by Timothy Leary and the other authors of "". Trip sitters are also mentioned in the Responsible Drug User's Oath.