I remember in FFXI trying to kill a bunny rabbit once. When I pulled said bunny, I noticed the Monty Python rabbit taking notes as the poor Elvaan that was my avatar went from full health to being evenly coated across the zone. It wasn't even aggressive, but good gravy it made hell look tepid in comparison when I hit it with my sword. I wouldn't mind stuff like this running around the starter zones in XIV for lowbies to try and fight as a party for kicks.