I ride a bicycle a lot. And I ride in LA. Often I ride through Santa Monica and Venice.
But I don't wear a helmet, and I don't ride on the last Friday of the month, because I really, REALLY, REALLY don't want to be associated with the Critical Massholes.
I have people try to kill me every day. I know they aren't doing it on purpose. They simply aren't paying attention. yet I know that me shouting out "pay attention" won't make them pay attention, it'll just make them surly.
People park in bike lanes. They don't do it to be dicks, they do it because they suck at parking. Putting a sticker on their bke that says "I Park in the Bike Lane" says two things: it calls them out for sucking at parking, and it tells them that ALL BICYCLISTS ARE ASSHOLES.
And we're not. Some of us are just enjoying some fresh air.