Safety BDSM
Some BDSM activities may be potentially dangerous if appropriate precautions are neglected. In particular, it is sometimes the practice that the submissiveş will complain of suffering or beg the dominant to stop, and that this will be ignored by the dominant. Therefore, one aspect to ensure safety is to agree upon a safeword. If the dominant and submissive are in a scene that causes unacceptable discomfort (physical or mental) for the submissve, a safeword can be uttered to warn the dominant of trouble and immediately call for a stop to the scene.
Sometimes BDSM may involve a simulation or "role play" of rape or other non-consensual acts. A dominant and a submissive may choose to pretend that the submissive is being raped or otherwise forced to do something unwillingly. Therefore, words like "No!" or "Stop!" are inappropriate as safewords, because a submissive playing the role of a victim would say these words as part of the scenario. The ideal safeword is a word or brief phrase (such as "scrambled eggs") that normally would not be spoken during a sadomasochistic act, and which therefore calls attention to itself by its own incongruity. In scenes where the submissive is to refer to the dominant by a title or fictional name, the dominant's real name can serve as an effective safeword. Although this would not be used by 'lifestylers' as it would be inappropriate.
Some people in BDSM use multiple levels of safewords. For example, the safeword "green" to increase the intensity/pressure/force, "yellow" would be employed to indicate "You are approaching an intensity (or an activity) that I don't wish to experience; please do not continue this scene further in this direction, or do not increase the intensity", while the safeword "red" would mean "Please stop this and release me, right now."
In situations where the submissive's mouth is gagged, or the submissive is otherwise incapable of speaking without violating the fetish scenario, a non-verbal signal is used instead of a safeword. Typically this might be dropping a bell or ball, or uttering three high-pitched squeaks in quick succession.
In theory, a dominant is capable of ignoring a safeword. In the actual BDSM lifestyle, a dominant who acquires a reputation for ignoring safewords will experience increasing difficulty finding BDSM partners.
Some partners may not use a safeword, as the submissive may have full faith that the dominant can be totally trusted.
It is wise to invest in first aid training for all involved parties. For activities involving bodily fluids, hygienic precautions should be duly considered for avoiding the spread of sexually transmitted diseases and blood born viruses.

