It’s raining for the first time in weeks, and you know what that means. Somewhere in San Francisco, someone is standing on an outdoor MUNI platform and wondering why those stylish, clear sloping roofs fail so miserably when it comes to keeping the rain out. And while MUNI drivers should not take the blame for this and other transit-system flaws, we cannot help but feel the pain of the passenger who vented their frustration by leaving this bombastic complaint at the T-Third 20th Street station.