Both prisons loom large in the national consciousness, and he may have been referencing the Clint Eastwood Escape from Alcatraz film. ‘It’s right now a museum, believe it or not. A lot of people go there. It housed the most violent criminals in the world, and nobody ever escaped. One person almost got there. But they, as you know the story, they found his clothing rather badly ripped up. And it was a lot of shark bites – a lot of problems.’ It wasn’t immediately clear what swimming attempt he was referring to.