Wet roads, leaves, dark, daddy not being quite as vigilant as he should be, elder brother drifting out into the road, daddy suddenly realising they're on a collision course and taking evasive action.... bood-bada-boom!
I got home from work to be greeted by the 2 year old telling me 'Me hurt my leg. Me got a bump!"
Doesn't appear to be permanently scarred by the experience, either physically or mentally. No doubt the first of many.....