Rude and Disrespectful. Are buses becoming taxis?

I'm on a bike and the bus nearly bumped my over trying to overtake me like a taxi. The traffic was going slowly off the N1 in town on 16 April 2018, at 8:35, but nooo, he had to overtake me, nearly taking my life and my s****** with him. Upon confrontation, I was blatantly ignored and then slapped when I tried to get his attention with a hand motion.