- It's dusk or already dark and they have no lights on their bikes (which is a law).
- They are not wearing helmets
- They are wearing their iPods
- They are riding against traffic (against the law)
- They are running through lights and almost mowing down pedestrians (2 more broken laws)
- You must obey all traffic laws and regulations of the Commonwealth. Translation: You are a vehicle and must stop at stop signs and red traffic lights. Don't just go flying through a red light because you're a on a bike and cars are scared to hit you. It's annoying and stupid and dangerous for everyone. Trust me, if you do get hit by a car, those skinny emo hipster jeans you are wearing will not offer much protection.
- You must use hand signals to let people know you plan stop or turn. Translation: You have to tell people where you are headed or when you are about to stop. I know drivers in Mass don't often use their blinkers, and bikers complain about getting cut off by turning cars, but telling the vehicles around you will give them more notice about your own intentions. Hand signals are not exactly rocket science. USE THEM PEOPLE. Not using them is annoying and stupid and dangerous.
- You must give pedestrians the right of way. Translation: When the little white walk man pops up, it is not your turn to go. Again, on a bike, you are a vehicle. Not a pedestrian, and definitely not some weird special combination of vehicle and pedestrian. So don't ride across an intersection trying to plow down as many pedestrians as you can. It's annoying and stupid and dangerous.
- You must have your headlight and taillight on if you are riding anytime from 1/2 hour after sunset until 1/2 hour before sunrise. Translation: When it is dark, put on lights so that people can see you. Not like a dinky little flashlight, but a bright-ass, visible from far away light. Blinking lights are even better for visibility. Not using lights is annoying and stupid and dangerous (Are you getting the picture that not following the law is annoying stupid and dangerous?)
Update 5/11/10: See this great article in the Boston Globe about cyclists needing to earn the respect they are asking for.