I fed my Yak on my spare Cadbury chocolate 21,0000ft up Everest. It was a blonde, very sweet female Yak. I made it my pet after that.

My biggest love is space. I completed 800 hours' space training in Moscow and I became the world's oldest man to go to the North Magnetic Pole. At 67, I also became the oldest man to reach 28,400ft on Everest without oxygen.

I do everything I can for wild animals because they have such a bloody awful time.

Ninety nine per cent of the time, for anyone who wins or makes money, it makes them happy.

I met Picasso when I was a kid. I turned one of his drawings down which would be worth £37 million now. My dad wouldn't talk to me for a fortnight.

I threw [Picasso's] drawing on the floor and in doing so, threw away about £50m.

My brother Alan - who was seven years younger than me - died from leukemia when he was 52. He never knew a day's good health - I wish I could have given him some of my good health. But he was always so cheerful and sweet.