Chicago suburbs: Sometimes the act of urban sketching puts the artist in a real life situation where it is tough to decide when to jump in and help and when to capture the event. The action may happen so fast that the only way to capture the event is by taking a photograph or to have the scene so clearly etched in the mind (such as this one). This sketch was created in 1977 when I used to live on a busy street in the suburbs, at the bottom of a hill where drivers often stop and turn into the subdivision. Often I would hear screeching of tires, slamming on the brakes, and the more rare collisions. This accident was captured after all of the first responders had arrived and the situation was under the control of the incident commander. I became one of the many witnesses standing across the street to see how the rescue mission would play out and I could then focus on contrast of shapes and the lighting for the nighttime event. Sometimes what the urban sketcher captures may be useful to the police because our observational skills can help piece together the puzzle.