Not that long ago I was by the local river when a granny out with her grandkids
Loudly exclaimed: "Oooh look, an otter, it's an otter!"
I caught sight of it too.
Told her: "It's not an otter, that's a mink."
She snapped back: "How can that be a mink? They're not even native!"
Me: "Yes, I'm quite aware of that, and I'm also aware there used to be a fur farm a couple of miles down the road."