"Stop," he said. "Look at this," he said. "This is a very Greek thing."
We stopped to look at a cat, which was sitting on a wall and not moving.
"Cats are like a witness," he said. "There are cats everywhere, hiding in the shadows and staring out at you. In my life it seems that every time I do a dodgy thing there has been a cat. If you could see the whole biosphere, cats would be like surveillance."
We walked away, and the cat kept looking at us, because now it had seen something.