If you could edit your past, what would you change?

I'd have concentrated a bit more at school and maybe gone to university rather than drama school.

The bits that consumed me with guilt.

I would not toy with people's affections as much.

Doc Brown proved that editing the past is disastrous.

I would never have smoked - I gave up years ago.

I'd have not sung along with Yellow Submarine in that infant school hall.

My drinking habits.

I'd edit out all the wrong people I surrounded myself with socially and professionally whom I thought I had to tolerate.

Not reading medicine.

I'd have a good, encouraging start in school – I think I'd be a different person, with fewer anxiety attacks.

I wouldn't have been a bully and I'd have stood up to more bullies.

I should have sung with David Gilmour at Carnegie Hall because I'm a massive fan of Pink Floyd.

I had my heart broken a lot in my teens, but I'm not sure I'd change it.

The respelling of my name to Joseph.

I’d edit out all my gauche incomprehension.

Too many things to mention.

I’d have been less precocious as a child (you grow up fast in New York). I’d have prolonged the naivety.

That I didn’t think I knew everything.

I’d have told a racist cabbie to go fuck himself, but I was scared about being chucked out on the street at 2am.

My failures have taught me more than the successes, so not much.