I had a meeting in Brooklyn after work, so I take myself and my folder on the train. I had a nice ride around midtown, picking up a new blinky at the Chelsea bike shop. I take the subway to Brooklyn, and I'm riding around to kill some time and get a flat.

After changing the tube, it's making a hissing noise. I had checked the inside of the tire for pointy stuff, but missed a piece of glass stuck outside. Arrgh. I was done with any riding for the day, but I felt like an idiot.