Angelo Persichilli column in The Star:
http://www.thestar.com/comment/article/691298
Then we have the perceptions.
There is a mindset that the person in the car is automatically the bad guy for the simple reason that he is driving the car. The car is an expression of consumerism, this thinking has it, and does nothing but cause traffic. The car pollutes and the car is big. On the other hand, if you ride a bicycle it means that you cannot afford a car, so you must be poor and vulnerable, or you are an environmentalist or you just believe that it's the fastest way to move around. Furthermore, the car is big and the bicycle is small. Given this juxtaposition, the David and Goliath syndrome immediately kicks in.
Because of this incorrect perception, some cyclists have developed the conviction that they own the roads. They pass you on the right, the left and go through red lights. They cross the streets with cars or follow pedestrians. They slow down the traffic because it's hard to pass them on a narrow street and if you dare to swerve to avoid a pothole or a cat, they scream at you and/or violently bang on your car. I've heard of people who have had serious damage to their hoods and been verbally threatened.
Because they believe themselves to be morally right, some cyclists think they are above the law, seeing stop signs and stoplights as little more than ornamental.