Why Did Lord Shani Get Angry?

Kadru's son tells her that it wasn't Garud's fault It was us who said firm words for Lord Shani, and maybe that's why he got angry and looked at us with his curved vision. Thus, Kadru asks them who took you to Lord Shani? Her son tells her that we had strayed from the path. Thereupon, Kaaliya interrupts and says, how innocent you both are! Will Kadru trust her son?