The main problem is surely that everything about modern life that Pratchett tangentially referred to was inevitably the victim of his mockery of how absurd it w

The main problem is surely that everything about modern life that Pratchett tangentially referred to was inevitably the victim of his mockery of how absurd it was - so were an ad for instant soup to appear halfway through the adventures of Rincewind, Sam Vines or (my personal favourite) Lord Vetinari, it would surely be interpreted by any half-clued-in reader as an object of ridicule...