This happened to me prior to the saver option. Along Alabang-Zapote road I saw his car approaching slowly as traffic was slow. As I was in front of him he suddenly cancelled without explanation and was not looking at me as he passed by I gave him the middle finger and cursed at him loudly. I really wanted to kick his door as he was still moving slowly but decided to report him to Grab. Grab told me that he has been cancelling bookings and they suspended him and I felt happy. Justice served!!