Here in central Texas there's a massive amount of loose rock leftover from sea bed deposits. Some is just limestone, but some of these darn things are crystallized fossils hard as flint.
If those SOBs start tossing these Texas Rocks like I seen on CNN in Israel, geez buddy, it's gonna knock some noggins.
I'm gonna take off this afternoon and go shoot some skeet....kinda my own Personal Remington 1187 Anti-Missle Defense System.
Yeah, let's go with your idea.....