We’ve all heard the horror stories, those tales of Poomageddon (also known by some as Poonami) exploding from a tiny infant’s nappy. Unchecked, the effects can be pretty horrendous for anyone nearby, even upstairs, cowering in a corner under a door that’s been taken off its hinges. Just as well then, that during the tense Cold War years the government saw fit to publish essential family guidance in the event of Poomageddon. Never published before, this has recently been declassified and made available to the public for the first time. It seems as relevant now as all those years ago.