I'm thinking about adding another category of cyclist misbehavior: consistently finding fault with how others drive their cars, bikes or grocery carts

By the way, while we're on the grocery shoppers behaving badly meme, I don't know if anyone here has ever shopped at Whole Foods or Berkeley Bowl in Berkeley, but they are famous for how much drama their customers consistently provoke with each other. All these supposedly healthy, environmentally friendly, enlightened people angered by the simple act of buying food -- I wonder if they are cyclists.

Just kidding!! It's a joke!