Over at PeopleForBikes, they've started this "Travel with Care" campaign to put a human face on those of us above the pedals, to them behind the steering wheels.
Good as far as it goes, but first, that chef with the knife looks a bit scary.
Second, while we'll never get all riders to be sensible and polite, we could take on a lot more responsibility for knowing about the traffic conditions and drivers around us, and being polite and thoughtful. BikeSnobNYC has had a gazillion rants recently about how drivers can kill riders with impunity, and he's right to be upset about that; I don't deny that problem in the least. But I've ridden with more than a few people who, if they got clipped by a car, I would have silently applauded.