I too abide by the limit- Idiots behind may not want to but they are forced to! A child jumped out in front of me on Crystal Palace Road, As I was doing less than 20 he was fine - bounced off the car. Car wasnt fine but the most important thing. If I was dong 30 he would be dead or injured. Ofcourse the parents started all the we want compo crap but I said we are all very lucky he is ok. They dropped it. Oh yeah they also wondered why I didn't bring him home. Windscreen was smashed and car undriveable!