It is not possible to meaningfully consent to sadomasochistic sex  Meaningful consent requires both that the person is informed and of age when consenting, but also requires the ability to withdraw consent at any point in time. Sadomasochism does not afford this crucial requisite of consent to the individual, and therefore no individual can legitimately and fully consent to the act.  Safe words are ludicrously impractical. Their utility is dependent upon their actually being agreed and committed to memory in advance and their declaration being heeded by the individuals who are under the influence of intense sexual desire. The passive ‘victim’ might be subject to the physical constraints, characteristic of bondage, that make speech or even flight impossible. It might be difficult to distinguish between an injunction to cease and an exclamation of pain, which presumably is a relatively regular occurrence.  Even where a number of individuals are able to demonstrate that their sadomasochistic encounters are conducted on a safe, regulated and consensual basis, it is not possible to give a concurrent guarantee that S&amp;M is generally safe and cannot be used to perpetrate rape or abuse. The existence of a group of individuals able to interact safely in a sadomasochistic context does not mean that S&amp;M does not present a risk to the wider population, nor that ordinary individuals are not excessively vulnerable to harm when engaged in S&amp;M activities.