On this particular afternoon, the train was a little lighter than usual. There was enough room for everyone to sit down, the weather was nice, and all the passengers seemed to be calm and relaxed.
Maybe that's why the woman broke into song. I'm not sure what the tune was, and her voice was actually pleasant, so it didn't seem like anyone cared that she was singing. She sang a couple of songs until a few stops later got off the train -- still singing.
A new group got onto the train, and once we started moving again, a man began singing. Just like the lady before him, no one seemed to mind, and he sang until the next stop when he got off.
When the train started again, we all looked around at each other, wondering if someone else was going to sing. Fortunately, or unfortunately, no one did, and the singing marathon ended.