Hmm, probably choosing to live with my Mother over my Father when I was 12 whilst they had a custody battle over me.
My father was a disciplinarian, I was succeeding at school and so on. Whereas my Mother was too liberal and let me misbehave resulting eventually in school expulsion and so on.
I believe everything is meant to happen, but it would've been interesting to see where I would've ended up if I had stayed at my Father's, having the discipline and trades behind me.