I agree with Wayfarer's post, though I've never seen a roller blader doing anything particularly abnormal on my travels around se23.

I do the odd cycle commute to work. On Monday in fact I was hit from behind by a car. The driver didn't even notice (he had hit my pannier bag so there was no loud noise) and when I shouted at him and reached out to clip his wing mirror as he drove past (yes, he was that close) the passenger in the car tried to open his door on me to knock me off. If I'd managed to get his reg number I certainly would have reported him to the police but I was a little shaken up and it didn't occur to me in the split second that I had.

I guess that all drivers are not like him though.