The trainers at the gym said they were surprised it had not rained yet. All afternoon the air smelled like rain and the clouds massed as if they truly meant rain. Nobody was without an umbrella, but still by the time I was walking home from the gym (and passing rundown Potrero Center as seen here) there was still no rain in San Francisco. No rain fell in the evening either. In the middle of the night when everybody was asleep the rain finally (conveniently) fell.