As far as I'm concerned, if you aren't willing to control those among you who wish to cause others physical harm, others that have no quarrel with you, however vocal and dangerous a minority they may or may not be, who will? Unfortunately, with regard to the US (response), many times it has come down to: you haven't done anything about it so I will. Whether that is right or wrong obviously depends on the circumstances. Your dog keeps ****ting in my yard and I keep stepping in it. I ask you over and over to do something about it and you either say you will but don't or completely ignore me. One day you let your dog out but he doesn't come back like usual. Strangely, you haven't seen or heard me complaining to you today either. I wonder why that is? It might have something to do with bear trap your little rat of a dog found his way into on his way to taking his afternoon dump in my yard. The best solution? Perhaps not but way cheaper than building a fence.