p-86-87 'he knew he was shivering with fear more than cold. Though it was difficult to name the fear. The place, perhaps. The haunted face, the stammers, the stumbling walks, that indefinable look of being mental. Craiglockhart frightened him more than the front ever did' - Sassoon was able to conquer the front - nicknamed 'Mad Jack' for his daring charges - he knew the war was brutal and he was ready for it. But Cl is even more unpredictable, people breaking down at any moment, screaming in the night.