Morality and custom are a web of related concepts and practices. A change in one aspect changes other aspects and opens the way for previously unheard of possibilities. In many ways, the phenomenon of gay “marriages” now sprouting in Western nations points to a culprit outside the world of homosexuality. The culprit is what I call the “Shack Up” Syndrome. The “Shack Up” Syndrome is a heterosexual phenomenon that erupted in American society in the seventies. Prior to that time, sexual cohabitation, as the idiomatic term “shacking up” implies, was viewed as a down-scale admission of social failure. Today, it has become statistically normal, i.e., it is so common at all levels of society that there is no social stigma attached.