"We probably go to St. George Alley once a week and there are 30 piles of (human) waste," he says. "There's other alleys - Minna and Stevenson (South of Market) - but St. George is the worst."
Whenever there are complaints that San Francisco smells like a Porta Potti, someone is bound to reply that the reason is there is no place for the down-and-out to go. But that's not really true. They have plenty of places.
"Bus stops, alleys, doorways," says Mahoney. "They go anywhere."