In reply to stroppygob:
That could be a mind boggling thing to ponder, and odd feeling.
My dad walked through a cornice on Devil's Ridge in Scotland and bounced down the hillside, at about the only point you can do on there, before I was conceived.
Then I was the only baby who came out alive from the premature baby unit, I found out a few years ago.
It seems a lot of life is down to chance.
Post edited at 17:58