I've been going to start a thread on this. I drive all day at work and it happens about twice a day. The other day this wifey just stepped out with her kids straight in front of my huge work van. I started ranting at her and she and the kids just smiled and waved at me. Yes, they were black, maybe they have a different system over there?
You could say that about immigrants from anywhere though, I don't think it has anything to do with skin colour. If you've ever tried to cross the road in Paris...