Well, uh, if this is the only thing that bothered anyone so far, I guess that's a good sign.
But, this little bit only takes place in three spots; the path to the cave, INSIDE the cave, and out in the fields of the characters' hometown. They haven't gone far, they're just in the fields of their hometown, which just so happens to have foxes that keep hunting the sheep in the area.
Though, they wouldn't be that common, I guess. I'll change that later.