Satire on the downside to being either tall or short Caption: Up last draft: "I suppose you 'as to be careful 'ow you looks over the parapet about 'ere' Out since Mons: You needn't worry me lad, the rats are going to be your only trouble" Bruce Bairnsfather loved to contrast the world-weary, hardened old hand who had been "Out since Mons" with the naive raw recruit. But his joke does stress two perennial problems for trench inhabitants- the danger from snipers (for