Driving us crazy II

Now I know some bus drivers have chips on their shoulders and I know that the words "Wellington" and "service" have never gone together but this just sounds the limit:

Stagecoach is investigating an incident on one of its buses where a blind 14-year-old boy was assaulted following a dispute with the driver.
He presented the driver with a card for the visually impaired when he boarded the bus in Wellington's Island Bay.
The driver did not accept the card belonged to the boy and asked him to get off the bus.
While the matter was being discussed, another passenger punched the boy and dragged him onto the pavement.
Police say it appears the driver did not intervene and drove on after the incident.

My previous tales of woe as an Auckland bus patron don't really compare with this incident (if true). The passengers are supposed to help attack the driver - not each other. What's wrong with Wellington?