Mary Killen: Sandi Toksvig is wrong about the placement of the pudding fork

Sandi Toksvig, as this book’s cover declares, ‘makes Stephen Fry look like a layabout’. The broadcaster, author, comedian, actress and mother of three has also had time to churn out 20 books in 20 years. This one, a guide to modern manners, although dedicated to ‘Mary’, an eight-year-old girl whom she addresses regularly throughout, is said to be aimed at adults, or Mary when she grows up.