Marionberry fruit photographed at the National Centre for Organic Gardening, which has been the headquarters of the Henry Doubleday Research Association since the early 1980s. Michael Boys/Corbis/VCG/Getty Images hide caption

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Michael Boys/Corbis/VCG/Getty Images

There are signs around the reservoirs in Portland's Mount Tabor Park that warn against putting anything in the water. They apparently didn't dissuade one young man from urinating into the city's drinking supply this week. Randy L. Rasmussen /The Oregonian/Landov hide caption

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Randy L. Rasmussen /The Oregonian/Landov