On a special day they gather for a feast with all their children, sisters, mothers— all sexes and ages. There, flushed with the banquet after such feasting and drinking, they begin to burn with incestuous passions. They provoke a dog tied to the lampstand to leap and bound towards a scrap of food which they have tossed outside the reach of his chain. By this means the light is overturned and extinguished, and with it common knowledge of their actions; in the shameless dark with unspeakable lust they copulate in random unions, all equally being guilty of incest, some by deed, but everyone by complicity.

— The triumph of Christianity by Bart D. Ehrman