Can you tell me about Appasaheb's interaction with the Fakir and the promise of ten rupees?

Certainly. According to Chapter 33, Appasaheb Kulkarni felt that the one Rupee his family gave was insufficient. He made a verbal promise, saying, "Had I been there, I would have given ten times more for the Fakir at that time." He thus committed to giving ten Rupees. However, the text questions how he could be free from this debt without fulfilling his word. Later, when a Fakir, implied to be Sai Baba in disguise, appeared, Appasaheb became suspicious and hesitated. He had six Rupees available but did not offer them, showing the difficulty of acting on a promise. The story is used as a lesson on fulfilling one's spoken commitments.