It usually takes an extra nudge to get people talking about those big, often overwhelming manmade problems; the ones that could really use an ocean of clever thinking to find solutions for (See Thomas Homer-Dixon’s extraordinary Ingenuity Gap). Sewage, for example, is one such topic. Out of sight and out of mind, most people will say, however there exist some fairly significant questions regarding our massive investments and miscalculations in waste management. Well, Canadian director Jeff McKay has tackled the dirty issue and formed it into a stunningly disgusting and though-provoking documentary, Crapshoot: The Gamble with Our Wastes, just recently released at film festivals. He looks at how sewers first came to be and how they and the effluent they transport have effected human society and our environment.