British artist Bill Woodrow is well-known for making sculpture from things found near where he plans to exhibit it. Last summer, the La Jolla Museum of Contemporary Art invited Woodrow to spend some time in the San Diego area and make the work that would comprise his first museum show in the United States. (Even the show’s antic title, “Natural Produce: An Armed Response,” was patched together from vernacular speech that caught his ear.) Woodrow was particularly struck by Southern California’s bizarre commingling of paradisiacal climate, sybaritic living, and security consciousness, as he