The Ritual of Everyday Ordinariness by Penny Rimbaud and Matthew Griffiths. Illustrations by Bron Jones (aka Eve Libertine).
Grandad takes himself off down the trenches to have a crap in peace. The sargeant catches him squatting and has him executed for malingering. 'The Ritual of Everyday Ordinariness' charts the tragic course of his descendents. This beautifully designed novella comes as Rimbaud and Griffiths' contribution to the centenary of WW1, lest we forget.