Almost half of all men and women will cheat during their relationship. With the court decisions of Lawrence (2003) and Martin v. Ziherl (2005), laws against affairs between consenting adults have been invalidated. Modern psychological theory suggests that humans are not "naturally" monogamous, yet most people are trapped in an economic and social cycle that forces them to marry and penalizes them for cheating. We look at the realities of cheating, and consider when it is ethical. We look at harm reduction - most men and women will cheat, how do we do it in the way that is least harmful to our...