A dungeon monitor (sometimes referred to as a dungeon master or simply a DM) is a person charged with supervising a playspace (or "dungeon") at BDSM events such as play parties and fetish clubs. These people may be of any sex and may normally identify as any role (dominant, submissive, or switch), but while on duty their authority is absolute. If a dungeon monitor orders a play scene to stop, it must be stopped immediately. Dungeon monitors are usually people with significant experience and/or explicit education in BDSM and safer sex practices, and who also have verifiable training both in BDSM safety practices and first aid techniques. They often wear a special uniform or hat, but there is no standard way of denoting who is a dungeon monitor.