Confession:

Quite frankly, this is a worry for me. I have noticed that I've become shorter with people and less tolerant as I've got older. I've started to feel some resentment in certain situations where I felt I was being unfairly treated.

I recognise these feelings and things, which I am grateful for. So I work hard to correct this, and I hope I succeed, but I seriously worry about my brain changing and becoming someone quite unpleasant. You look at people from the outside, and it is so easy to judge, but we're all just a big bag of chemicals and physics. Personality change does happen, it could happen to any of us.

As you get older time is more precious so you want to waste less of it. This is a factor, how much of a factor it is differs from person to person.