Oh look, hallowe'en. Every supermarket entrance glows with orange globes, and even shop seems to be festooned with fake cobwebs, mildly mouldy cut gourds and giant spiders. What larks, eh. What a bloody waste of a really good vegetable. I love pumpkins, and their occasionally-lumped-in-with-them-cousins, squashes. But I loathe the nasty, stringy things passed off…