I got a bunch of them too...... I was lucky really - there was a small tray top ute in front of me that ended up with a broken windscreen, dents in his bonnet and cracked front bumper..... I got stone chips across my bonnet and in my windscreen and pulled up literally centimetres from the back of his ute, we both braked so suddenly and were so shocked to see rocks bouncing off the road and flying thru the air that we almost had an acco to top it off! No one could go anywhere til we moved all the rocks off the road - I just don't understand how you can drop a load of rocks on the road like that and not realise.....???