For those of you who managed to stay away from your social-media feeds last weekend, Philadelphia's mayor took to Twitter on Saturday night to reverse his administration's new ban on the time-honored practice of parking your bottom atop Rittenhouse Square's elegant limestone balustrades. The tweet was a response to the mounting outrage over the ban's exclusionary implications, and to plans for a "Sittenhouse Lunchtime Sit-on" on Tuesday. "This government is very large and at times things just get by you," an apologetic Kenney wrote. "Sit where you want."