How did Sai Baba handle a skeptical visitor, and what did it teach about approaching him?

The story of Boss Dharamsee in Chapter 35 provides a powerful example. Dharamsee arrived in Shirdi with a 'clinical scrutiny' and was skeptical of Baba's powers. When offered grapes with seeds, which he disliked, his skepticism grew, and he mentally challenged Baba. However, Baba, knowing his innermost thoughts, gave him more grapes and commanded him to eat them. When Dharamsee obeyed, he found the grapes had miraculously become seedless. This personal miracle shattered his ego and skepticism, replacing it with love and devotion. This incident teaches that one should approach a Guru by becoming egoless and surrendering personal prejudices, as the text states that by 'rolling at his feet, you will enjoy the festival of happiness.'