I recall a meeting held by a gaggle of professionals promoting thecestablishment of a no-take marine protected area. The local fishermen's, , concerned for their livlihood, were skeptical, and mostly opposed. After numerous overheads of maps, charts, statistics, and a convincing marketing case that fishermen would benefit over the longer term, a small elderly lady stood upcand asked "have yoy ever heard about the statistician that drowned ib a lake with an average depth of one foot?" It certainly had an impact on everyone present, including the professionals.