I'm skeptical about Sai Baba. How did he deal with people who came to him with a critical or scientific mindset?

The provided text from Chapter 35 offers a clear example of how Sai Baba addressed skepticism. A man named Boss Dharamsee visited Shirdi with a "clinical scrutiny," intending to test Baba. Baba offered him grapes with seeds, which Dharamsee disliked and was hesitant to eat unwashed. As Dharamsee mentally questioned Baba's sainthood for not knowing his preference, Baba insisted he eat the grapes. Miraculously, the grapes turned out to be seedless for Dharamsee, while they remained seeded for another devotee. This direct, personal experience completely dissolved Dharamsee's ego and skepticism, replacing it with love and a firm determination to return to Shirdi, demonstrating that Baba often used tailored miracles to transform a person's critical mindset into one of faith.