Just another day in San Francisco, with mentally challenged drug addicts being among the few using the streets and parks of the Paris of the Pacific. Jaded city residents have become so accustomed to strange human sights they hardly shrug, but it's become so bad that the mostly liberal inhabitants are starting to turn on their progressive leaders. @SFGotham, an independent researcher who exposes the city's crime, corruption and policy failures on Twitter, saw something this week that made the crusader look twice. "Junkie on a skateboard carrying a mattress while smoking meth? Just another day in SF!" he mused...