There have been headlines of late that make me out to be an ash-guzzling savage nightly devouring her mother’s charred remains. “Rachael Stirling eats mother Diana Rigg’s ashes before going on stage” declared a dozen news outlets last month, while others referred to the “strange habit only she really understands” and “Dame Diana’s daughter admits eating her ashes in bizarre tribute”. I’ve written a book about our relationship, All About My Mother, in which I do confess to nibbling a grain or two, but I didn’t expect to be portrayed as a matricidal cannibal by the press.My mother was Diana...