hmc - I think you are right that your child is probably more at risk of catching measles! I know the chances of the child being kidnapped or the car being hit are very, very remote but I just feel uncomfortable doing it.
I was talking about the 'walking through the wood/down a lane' with some friends the other day and we all agreed we'd not have walked the secluded way at all. Not that anyone who does is asking to be attacked of course, it's just that I'm a great big wuss and think that if there is any chance of being attacked, children being abducted etc I'm not going to take it.
I'm seriously morbid!