As is in Shri Sai Satcharita, by Hemadpant .. Chapter VI Page 38

Om Sai Shri Sai Jaya Jaya Sai

They were at a loss to know, what enraged Baba so suddenly and what led Him to assualt Tatya Patil, and why His anger cooled down, the next moment.  Baba was sometimes very calm and quiet and talked sweet things with love, but soon after, with or without any small pretext, got enraged.

Bow to shri Sai - Peace be to all