I am curious about how may incidents are caused from people that consistently are a bit lazy, and how many are caused by people that make a one off mistake. It is a genuine question. The reason it comes to my mind is recently I was doing a three point turn (actually a 20 point turn) to get out of my drive way, as other cars had left me with almost no space to get out, part of this manouver involved me having to pump up onto the kerb when reversing, and just after doing it, I saw a little girl appear from behind my car on her scooter, she then stopped and looked at me. I didn't find out from her (she disappear shortly after) whether I had almost hit her, or not, but either way it shook me up a little, as I appreciate I could have so easily caused an accident, and I would say I am a very careful, cautious driver. In this particular scenario other road users had left the cars parked in a way that bumping up the kerb was my only option, but I simply didn't see this small girl, I think she came from behind a parked car, so I couldn't see her. Luckily no harm was done, but it shook me up a little. Hopefully it'll reduce my chances of having a similar incident in future as it'll make more more vigilent to my surroundings.