Strange, isn't it, all these chemical balances or imbalances that affect our behaviour, or outlook on life anyway? My sister, when growing up, seemed to have a quite different view of our parents than the other four of us did, and it detrimentally affected her during her teenage years and early twenties. Her behaviour during those years also detrimentally affected the rest of us to a greater or lesser degree.
And yet, as a small child, she was the easy one, according to my mother. I've often wondered if Sis had rebelled as much as the rest of us did as a child whether she wouldn't have suffered and caused suffering later. On the other hand, my mother once said that she'd had to be crafty to avoid S having tantrums. I've often wondered if it would have been better, with hindsight, to let her have tantrums. Not that I'm criticising my mother's approach – she had four other kids (and herself!) to consider and probably didn't have the energy to cope with full blown tantrums. Who knows? I was never aware of any favouritism from either of my parents. I think they were very careful about things like that. In fact, I think they were pretty careful about everything.
People like the Naked Rambler do make you wonder what their background was, don't they, and what motivates them to behave with a determination that has such negative results, and such predictable negative results at that.