These days at home, I generally try to eat only things that don’t have a central nervous system, or that I’ve knocked up in the food machine, but sometimes, when you’re a guest, qualms like that have to go out of the window, particularly on worlds ruled by intelligent plants, where you’re best advised not to ask for a celery stick and to just stick your toes in damp soil like everyone else at the table. Even then I try to stick to my principles and not eat anything with a sense of self, parliamentary democracy or sultanas in it.