Yesterday I walked outside of my hostel and the sidewalk was totally wet!
Before going back inside to get my umbrella, I looked up at the sky. It was bright blue. There were no clouds. In fact, it was a beautiful day. I decided against the umbrella and started down the street to the metro station. Wouldn't ya know, there were shoppkeepers out all along the way scrubbing their sidewalks! Water, brooms, soap, the whole nine-yards. Of course! It's not raining; it's sidewalk-cleaning day!