What is the name of your state (only U.S. law)? California. I was pulling into a parking lot, itís a one way in entrance. As I moved forward I was suddenly hit forcefully on my passenger door, the window to the passenger door broke and came flying into the car and toward me, the side view mirror was also projected into the car. As I came to a stop the driver in his motion continued to drag the length of my car ripping back portions of the fiberglass and even tore the handle of the passenger door off. There is absolutely zero damage on the front quarter panel of my car. The damage began at the passenger door. His insurer is trying to say I am 10% at fault. I completely disagree with this and will not agree to this. How do I go about relaying this to the insurer of the other driver. I already opened a claim with my own insurer. Even though that car only has liability. What does 10% mean?