Can you explain the situation with the Dakshina involving Kaka Mahajani and his friend?

The incident with Dakshina was a subtle teaching for Kaka Mahajani's friend. Chapter 35 explains that after the friend had already broken his vow by bowing, Baba asked for Dakshina, but pointedly only from Kaka Mahajani. Later, when they sought permission to leave, Baba again requested Dakshina—seventeen rupees—but once more, only from Kaka. The text explicitly notes that Baba asked nothing of the friend. This deliberate exclusion from the act of giving, especially after he had resolved not to give, made the friend feel "restless in his mind," suggesting Baba was working on his internal state in a unique way.