A while back when I got home and parked in the carport, my partner called out and asked, "What the hell happened there ??"
She was pointing at the front of my ute.
I got out to see what she was on about,,,,, and there was a 30 mm rock wedged in the hole in my headlight protector.
Beats the hell outa me,,, cos I didn't hear or feel the impact.
The protector did a good job though because the headlight itself was undamaged.
A new set of protectors now installed,,,,,, and cheaper by far than having to buy a new headlight.