I would instil confidence in my younger self.

I would have skipped the time my daughter was nine to 13, when I was in a toxic relationship.

I might have carried on doing The Voice.

I wouldn’t bother learning how to use logarithms, and I might give netball a miss.

Ever since they were born, Vic and I have been clear: happiness and confidence are the two things we want most for our children and the rest can all fall into place.

Leader of the opposition. I worked with the police service in Northern Ireland and then ran the Crown Prosecution Service. In each of those jobs, if something needed fixing, I could fix it. As leader of the opposition, you are not in power and it’s the most frustrating job I’ve ever had, and a job I hope I don’t have for much longer.

When I was appointed director of public prosecutions, I had a government car and visited the security services. When I came out, I got into the back of what I thought was my car, but it was somebody’s private car and they told me in no uncertain terms to get out. I had to reverse out with as much dignity as I could, with the head of security services watching.

Failure. I hate losing, particularly at football and politics. I play five-a-side every week – middle of midfield, barking orders. Some people say it’s the taking part that counts. I am not in that camp. It’s the winning that counts.

Vic, my wife, has over the years reduced my impatience, but anybody who has been in a traffic jam with me will know that she hasn’t completed the task yet.

Disrespect. My dad was a toolmaker and worked in a factory all his life, and he felt looked down on, and it really affected him. And so all my life I’ve loathed disrespect and valued respect.