Last night I was mowing at a factory along a highway. The ditch is full of rocks, road debris, etc. I've mowed it before and not had anything happen, but this area tends to be under constant change as far as rocks, etc. Any way, I kicked a rock out onto the highway and you guessed it, a car hit it. You mean it hit a car right? No, the rock (about the size of a golf ball) was sailing peacefully across the 4 lane road when a car hit the rock. The car hit it right on the front bumper somwhere. They turned off the road and got out to inspect the damage. I was just waiting for them to come back and start cursing. They got back in the car and kept driving. I don't know if it made a dent or not, it made a loud thud when they hit it. This area is bad, if I mow in the opposite direction, I would have hit the building or a car in the parking lot. It's a tough situation, and not the most desireable place to mow. Anyway, who's at fault when this happens? Thanks.