broken windshield

While driving on the highway, someone lost something (wood? stone?) the size and shape of a large brick, out of the back of their truck. It hit cars in front of me and flipped up over the top of the car directly in front of me, in my lane, and hit my car. It was super scary, and made BIG circular cracks right where I look. We lucked out and didn't crash. But we did have to buy a new windshield, which was expensive. Oh well. But they came straight to the house and replaced it during nap time. Perfect!