After guns the a##clowns will be busy banning knives, bats , chainsaws, axes, toenail clippers, scissors, spoons, umbrellas, bottles, cans, and frozen turkeys right down to hurtful hate language.
Well, I think we really should consider legislation to get rid of rocks. You can do serious damage with them. And they are far too readily available. Some irresponsible people even have them in their yards.