My brother learned this firsthand in elementary school when he threw a small rock at the windshield of a passing car traveling at about 40 mph. Shattered the windshield and the rock did penetrate into the car. The driver was fine, but understandably upset. I still don't think my brother learned anything.Keith B wrote:Bottom line, if you throw anything with any mass at all at a moving vehicle, it has the potential to penetrate the glass and is very dangerous.
