Ninety per cent bored stiff, nine per cent frozen stiff and one per cent scared stiff. That was - historian Andy Robertshaw insists - the experience of most soldiers in the First World War. It was not one of constant fighting, never-ending trench foot and heartless aggression from commanding officers, despite the impression to the contrary given by most film depictions. As for how I felt on a chilly but sunny day last week when I toured Andy's faithful reconstruction of a real British trench, I will let you decide from the pictures. The trench dug in woodland at Detling...