How did Sai Baba handle Boss Dharamsee's skepticism and internal doubts during their first meeting?

Sai Baba addressed Boss Dharamsee's skepticism with a direct and personal miracle that targeted his specific doubts. According to Chapter 35, Dharamsee, who was initially driven by a "clinical scrutiny," disliked the grapes with seeds that Baba offered him. He even questioned Baba's sainthood in his mind, wondering why Baba would force something upon him he didn't like. In response to this internal challenge, Baba not only gave him more grapes but, upon commanding him to eat them, miraculously made them seedless. This experience shattered Dharamsee's ego and intellectual pride, replacing his skepticism with love and a firm resolve to return to Shirdi.