I just found this blog entry about my day in San Francisco in April 2009. And I also do remember the balancing a track stand on the edge of the pier outside of the railing high above the water level on a fixed gear bicycle. It did cost me some concentration to stand still and not think about what would happen if I were to fall down accidentally. Here is the picture that Edsel Dilag took.
I still could not watch the movie clip by Justin Gallagher.