What if You Burn a Little Candle?

'I love your books and I love your show. But I'm finally on your radio station, but not from one of your discussions,' he says. 'And it's maybe a bit of a theme that we're just talking about where the things go because... Oh, no. Well, listen to this one, not long ago, I had some new tires fitted. And obviously, tires have gone down about a centimetre of rubber has disappeared.' He then asks: 'Where has that rubber gone? So, yeah. It's sort of the side of the road because I've looked.'"