Here's a great way to stop this problem

Heard of it?

The "Knockout game"?

http://newyork.cbslocal.com/2013/11/19/police-examples-of-troubling-knockout-game-popping-up-all-over/

Morons target innocent, mostly helpless, people, sneak up behind them and sucker punch them.

What fun.

Folks, if you are ever in a position to witness this stupidity, I'd like to suggest a NEW game (in defense of the victim):

Let's call it "The Second Amendment Game".

That oughta put a stop to the knockout game.

Hirota: out.