Reckless Driving

This morning I saw an NWS bus, fleet number 433 registration JS31JGGP driving very badly at CR Swart Road between Queenswood and Kilnerpark Skipa red light, cut off the car in front of me when the road narrowed and then slammed on the brakes (blocking the single lane road) to drop off passengers. Driving on the yellow line. I wanted to phone NWS to report this their phone is engaged