$1:
"Everybody's out walking on this road, and there's deer all over the place … and maybe [it’s a good idea to] let people know that there's a … deer [that’s] pretty aggressive in the area."
Deer are wild animals. They may seem cute and cuddly in movies, but they will frell you up when cornered or protecting their young.
I've seen the other side too, the son of one of my favourite dogs ever chased down and took a good bite out of a deer. He's a purebred Irish Wolfhound, and is almost bigger than the deer.
Best thing to do is chase them away. If they get comfy, the wolves will follow and they don't make good neighbours.