This sort of thing wouldn’t likely happen in Colorado and other states. The reason? Just about everyone I know has a concealed carry permit and uses it.
It is actually humorous to contemplate an OWS group walking into our local pub with mischief on their minds. Their hammers and batons wouldn’t work very well.
There has been very little of this OWS nonsense in concealed carry states. I do not see this as coincidental.