Smash-resistant Glass

I never believed that it existed. If it sounds like glass, looks like glass, it probably shatters like glass, right? Incorrect, apparently. After visiting a long-abandoned theme park, we came across this display case with half-broken glass. Now, my guy friend, being destuctive, decided that he wanted to try his hand at breaking glass. Silly as that may sound, he took a solid swing at it with a broken billiard cue and all he got for it was sore hands. He threw a chair with heavy metal legs at it, and the chair just bounced off. Now that's really tough glass. It didn't even crack, though part of it was broken by some hooligan. So if you ever visit an abandoned theme park and find some pane of glass to be largely unbroken, you can rest assured that it's some sort of security glass. I took a swing at it with the cue, and it promptly broke, though. Guess it just takes a certain kind of force to damage that sort of thing. I'm officially a hooligan! Well, anyway, I call it smash resistant 'coz it took quite a beating before breaking. My glass panes cracked in my windows without my having to do anything at all! I want that smash-resistant glass on my windows! =p