What was the incident with the sow, and what was Sai Baba teaching the devotee through it?

In a powerful lesson recorded in Chapter 19, Sai Baba, being omniscient, used a real-world event to instruct a devotee who had been engaging in slander. While walking, Baba pointed to a village sow eating excrement with relish. He used this visceral image to draw a direct parallel, asking the group to observe the sow's taste for filth and connecting it to how a person "rages against brothers and kin and satisfies its own desire as it pleases." The devotee, who had been slandering others that morning, was deeply stung by this analogy. The words pierced him to the core, demonstrating Baba's method of using shocking and direct examples to correct a devotee's blameworthy conduct.