I've not witnessed this hostility or violence, but as with all things there's probably some tiny fraction of the population that motivates comments like this on

I've not witnessed this hostility or violence, but as with all things there's probably some tiny fraction of the population that motivates comments like this one. I have had non-dog owners speak pretty nastily to me, whether it's about my dog doing something natural (like defecating, which I carry bags for) or not realizing that areas are off-leash. I typically find the latter when I go camping (though there are certainly trails and campgrounds that are non-off leash this usually isn't about the dog itself, but the presence of predatory or endangered wildlife). As a responsible dog owner, I check the beaches I'm going to, I check the parks (including trails and campgrounds) I go to, my dog is harnessed rather than collared, and my dog is properly socialized for both humans and animals (cats too!)