How is it possible that chronic behavioral malcontent George Miley assaulted a female police officer three weeks ago, but only ended up spending four days in jail? After all, his July 6 attack on Officer Lisa Frazer was followed by his 106th arrest since 2001. Most everyone says the system for punishing quality-of-life crimes like public drunkenness and aggressive panhandling is broken in San Francisco, but Miley seems like an extraordinary case. How can he be on the streets today? The answer is both complicated and simple: Lenient San Francisco juries, clogged courts, and judges who are more willing to...