How did the grocers who denied oil to Sai Baba react when they witnessed his miracle?

The grocers, who had conspired to stop the 'nuisance' of giving free oil, watched Baba to see what he would do. When he successfully lit the lamps with water, Chapter 5 describes them as being utterly amazed, putting their fingers in their mouths in astonishment. They immediately felt repentance, realizing they had sinned by lying to Baba and causing him needless trouble. The text states that these grocers, feeling unworthy of Sai's grace, began to tremble everywhere, acknowledging the immense power Baba possessed.