Even if you obey all traffic laws and make it a point to always drive defensively, you don’t always have control over the other drivers on the road, the conditions or the road, or the weather. If a piece of gravel falls off the back of a truck on the road in front of you, another driver kicks up a piece of debris, or if you experience extreme weather, you could suddenly find your car’s windshield so heavily damaged that you can’t safely drive it to the shop for repair or replacement.