Windshield Repair Forum

http://www.glassbytes.com/fetch.php?url ... uck-driver

Can a paper cup do that to a windshield?? - new one on me, maybe the cup was still full of ice cubes when it hit.

Yes, even a paper cup can smashes a window. It is distressing to read or watch reports about items being thrown from overpasses and hurting vehicle operators and the truck drivers amongst one who get hurt by such maliciousness.