Cynthia this is so sad to hear. This is the very very thing that happened to me almost a year ago between UON roundabout and westlands roundabout. I had a nasty punch up with them before getting my laptop back and to my rescue the cops came around and they were taken to Kileleshwa police station.
We need plain clothed cops to operate on these routes and help save unsuspecting passengers.
Thanks for sharing.