Seriously, I'm getting fed up of people dressed in dark clothes. If they do have lights it's usually just a small one that can be easily hidden. The other day there was a woman dressed in black, no rear light and a dark child's seat (fortunately no child). Would it be so hard to wear a reflective top and put some reflectors on the back of the child seat?
If you get hit by a car even if you're badly dressed it will be the driver's fault. They should of course be looking out but you can make it easier for them. And you'll be the one in pain - surely people want to avoid that?!
Don't even get me started on the inability to use bells when someone is in front of cyclists on a path - pedestrians aren't psychic!