I have always been quite careful when I have been approached to do a television project to have the option of writing the accompanying book.

I delivered leaflets for my dad and was paid £5 per thousand, which was slave labour.

It is security that I crave and money provides security. What is that old line about money? "Some is good, more is better and too much is just right."

People looking at what I do from the outside would think it was a secure world I live in, but it isn't. Just because you had a series last year, doesn't mean you will have one next. But I am quite happy with that.

I'm wary of the new contactless ways of paying. The idea of paying with your phone is a little worrying: I have lost more than one over the years.

I want to look beyond the legends, to find the real story of Scotland. And it's every bit as thrilling.

My wife has always supported me in my career, even when there were times when it was more sensible to get a job. It has been her confidence in me that has helped enormously.