I guess a lot of police keep their sanity by developing black humour.

If you and I took a walk down a shopping street in Jo'burg or Cape Town or London, we see two guys looking in a shop window, we think, "Oh, they're wondering what they're going to buy." A cop looks at them and thinks, "Why are they standing there? Are they doing a drug deal? Are they going to mug someone? Are they going to rob the shop?"

What Brighton's got is a major sea port on either side, good for importing drugs, great for exporting cash, stolen cars, stolen antiques. It's got the largest number of antique shops in the UK, so it's a great place to fence stolen goods. It's got tremendous communication: you've got the sea ports, you've got the channel tunnel, you've got Gatwick Airport 25 minutes away, and London's 50 minutes away by train. So all these escape routes... Which is what villains like.

The biggest qualification to be a good police officer is to have a high degree of emotional intelligence.

There's a difference between what I call a dumb ghost and a smart ghost. The smart ghost is Hamlet's father - you know, he says, "Get revenge, my son!" That's incredibly rare. It's much more the grey lady in the same place everyday, moving across the floor.

Branson ate his salad, and left the rest of his fish untouched, while Grace tucked into his steak and kidney pudding with relish. 'I read a while ago,' he told Branson, 'that the French drink more red wine than the English but live longer. The Japanese eat more fish than the English but drink less wine and live longer. The Germans eat more red meat than the English, and drink more beer and they live longer too. You know the moral of this story? 'No' 'It's not what you eat or drink - it's speaking English that kills you.

Most of us have one big idea at some point in our lives. That Eureka! moment. It comes to us all in different ways, often by chance of serendipity.