In that case pls case armor ur phone I just got back from the beach nd dropped it, a small crack on the screen and little scratches from the sand!! Jst treat it like a baby! Lol
Nothing won't with protecting it, but sounds like you may have had an issue where the object it hit had the same resonant frequency as the glass. Year ago, when my nephew was a few years old, he there a ping pong ball at his dad's plasma TV. It cracked the screen. His dad is a big sports fan so he's hoping that means he has an arm. Lol. Another example of this is taking a small gravel sized piece of ceramic from a spark plugs and throwing it at a car window. The window will shatter. A normal piece of gravel can't do this. I've personally verified this works.