It's true, people don't imagine I'd be particularly woody.

On the environmental front there's concern about global warming and high levels of carbon dioxide, and trees take in CO2 and store carbon.

I've always liked trees. And then, growing up, I took an interest in ecology, hedges being destroyed, the landscape being turned into prairies.

I like to think of myself as a natural gardener.

My favourite plant is the foxglove. I think they are a perfect balance between being a garden plant and a wild plant, as at home in woodland as they are in a city.

I don't think I'm really a rude person, but now I see myself on television, I think, 'Oh, God, that is a bit strong.' And I wonder if I've always been like that and I haven't been aware of it.

You can be a famous poisoner or a successful poisoner, but not both, and the same seems to apply to Great Train Robbers.