Sun Junshou of Changshu was extremely cruel and vicious and took particular delight in mocking ghosts and spirits. One day, while he and some friends were up in the hills having a picnic, Sun found himself in need of a place to empty his bowels. Looking around for a suitable spot he came across a dilapidated grave where a skull lay exposed on the ground. Sun squatted over the upturned skull and defecated into the opening, saying, "How did you enjoy that, my good fellow?"
Much to Sun's horror, the skull opened its mouth and replied, "Exquisite!"
Terrified, Sun ran as fast as his feet could carry him. But the skull rolled along like a wheel behind, and it was only when Sun had crossed a bridge that the skull ceased its pursuit. Climbing a hill on the other side of the bridge, Sun glanced back to see the skull rolling back to the grave.
By the time Sun reached home his face was a deathly gray and he had become incontinent. Until his death three days later the man would eat his own feces and ask himself, "How did you enjoy that, my good fellow?" And then he would defecate and eat his feces all over again.