I bought my BMW in 2014 with cash, because I was bankrupt and had no credit. But I was in Kinky Boots, so I was finally making some money.

At the beginning of 2019, I brought my entire family with me on my honeymoon to Bora Bora.

A pair of Russell & Bromley boots with studs. I have had them for eight years and wear them all the time.

Thirty-odd years ago I bought a black pinstripe suit which I thought was £900. But when I went to pay that was just the jacket – the trousers and waistcoat were extra. I didn’t have the balls to put anything back. I dread to think how much it cost me in the end.

I can be cranky,

I'm making cheap electricity,

Wonder Why would say, 'Why is the sky blue?'…Then Wonder Why would tell you. I was fascinated, because I wanted to know how things worked ... that was my introduction to science.

I married her because she is smart!

I'm making cheap electricity,

I didn’t realise I’m the oldest ever! So I just about made it, huh? Because you can’t be dead and win … If you’re a winner of the National Inventors Hall of Fame you can be dead. I won that prize a couple of years ago and I was very proud of that. That is the most, I would say, most important prize I’ve won.