Why would Sai Baba tell someone to feed a black dog instead of attending a feast like the one Dev prepared?

This question is based on a premise that is not supported by the provided source material. The text from Chapter 40 does not include any account of Sai Baba telling someone to feed a black dog. On the contrary, it explicitly states that Baba did attend the feast prepared by Dev, albeit in a form that Dev did not recognize. Baba appeared as a Sanyasi with two companions, fulfilling his promise. When Dev expressed his disappointment to Jog, Baba replied, "You did not recognize Me! Why then did you call Me?" This lesson, as shared in Chapter 40, highlights the importance of perception and faith over literal appearances.