Fontaine watches the rats flash past and sighs. He has a fire ax here, somewhere, salvage from a tug sank in China Basin in 2003, and an extinguisher too, but he can't imagine these will be of much use, although chopping a hole in the back wall and falling into the bay is a possibility. He wonders if there actually are sharks there, as the bridge children like to believe. He knows for a fact there are mutant fish, warped, it is said, by oxides leaching off the piers of the cable towers.