Happily munching on some special edition Christmassy Walkers Roast Turkey with Paxo Sage and Onion flavour crisps (‘Merry Crispmas!’ indeed), ILx draws my attention to a nasty news story about parasites. And I’m thinking that if our crisp manufacturers keep pressing further and further towards authenticity and exoticism then surely tapeworm cyst flavour crisps aren’t far off. Mmmmm, tapeworm cyst’