Downtown San Francisco sat under a haze in the mid-afternoon. It was fairly warm here, being the western coast of the U.S. A mild breeze was picking up off the ocean, bringing in the warm coastal air with it. Way out in the bay, almost past where it met the ocean, a yacht was floating. It was brand-new, in fact being on its maiden voyage, going down the coast. The boat had been a joined effort between two men, Paul Davis and Randy Shubein, and now the two were sitting on deck, sipping cold beers while talking in the shade. "Could be a shark," Paul said.