Entering a parking lot the other day, we paused, then backed up to let a car maneuver into a space. Loud crack. Oops, we had just backed into the arm of the ticket booth coming down. Rear window shattered. Never realized how that kind of glass works before. Impressive amount on the ground and in the car. But I got some interesting shots of the glass; looks to me like a collusion of particles, but that could be because I seem to have particles on my mind. The shot I liked the best was some piece of tubing from the inside of the door and now exposed to the world.