Corey Taylor, the singer of Slipknot, laughs when I observe that he is disappointingly well adjusted. He had just been explaining that he does his own cleaning at home, that he ‘hates seeing privilege and entitlement’, that he can get from place to place without needing his hand held (you might scoff, but many musicians get infantilised by a life of indulging and being indulged). ‘I have a very healthy ego,’ he says. ‘But I also know to keep it in check as much as I can, because I don’t want to be that dude.’ Which is not to say Slipknot’s career has been free of incident. Far from it.