I ran over a plastic bag today going slow in a parking lot and somehow it got sucked into the electric fans. It went pop, pow, crack and spit peices of plastic out for miles. I finally stopped to assess the problem and attemped to remove all the plastic. I got it most but it will need further attention later. Moral of Steve's story: Beware of running over loose objects such as plastic bags, newspapers, etc. apparently the Z has a tendency to grab them.