Steven James Hughes said: The men were taught how to introduce fluid rectally. Obviously it could not be given by mouth. Each man carried a pint of intra-venous fluid. Ideally this would be given intravenously by a medic. But the historical treatment of rectal infusion, or "proctoclysis", was employed as better than nothing. THE MOST IMPORTANT DETAIL WAS THAT EVERY MAN CARRIED A PINT OF INTRAVENOUS INFUSION FLUID.