'Vimes looked at the cover. The title was The World of Poo. When his wife was out of eyeshot he carefully leafed through it. Well, okay, you had to accept that the world had moved on and these days fairy stories were probably not going to be about twinkly little things with wings. As he turned page after page, it dawned on him that whoever had written this book, they certainly knew what would make kids like Young Sam laugh until they were nearly sick. The bit about sailing down the river almost made him smile. But interspersed with the scatology was actually quite interesting stuff about septic tanks and dunnakin divers and gongfermors and how dog muck helped make the very best leather, and other things that you never thought you would need to know, but once heard somehow lodged in your mind. Apparently it was by the author of Wee and if Young Sam had one vote for the best book ever written, then it would go to Wee. His enthusiasm was perhaps fanned all the more because a rare imp of mischief in Vimes led him to do all the necessary straining noises.'
From Snuff