In William Golding's Lord of the Flies, after Jack has broken away from the main group led by Ralph to become the leader of a new tribe of boys, he decides that they must slaughter a pig. Afterwards, they put the head of the pig on a stick, acting as a sort of offering to what they think is an ape-like beast that has been stalking them on the island.
A bit later in the book, after Piggy is killed and Ralph barely escapes from Jack's group with his life, Ralph must hide in the jungle. When Ralph finds the skull of the pig, which is the physical embodiment of the titular Lord of the Flies (meaning the devil), it "seemed to jeer at him cynically." Jack sees the skull of the pig as mocking him, "like one who knows all the answers and won't tell." He feels a "sick fear and rage" and breaks the skull into two pieces, taking the stick it was on to use as a spear.