Why do the 'Palestinians' stone ambulances that are treating 'Palestinians'?

On Saturday, a Magen David Adom ambulance that was evacuating a seriously injured 'Palestinian' was stoned in the Jerusalem neighborhood of Issawiya, which is on the back side of Mt. Scopus, overlooking the Maaleh Adumim highway.At the time, I did not blog it, because it seemed totally routine to me. For many years, IDF ambulances operating in Jerusalem, Judea and Samaria have been