mikes70mustang
macrumors 68000
Except the fact that they don't crack very easily.
In what warped reality does everyone think that glass is so durable? Its extremely resistant to wear. But give it a little torsion and its gets very weak. Think of a bent frame on a car. Usually a rock can smack the window and have no problems. But put a little stress on it and it breaks with little force or impact.