At The Retreat in the Shokuho mod, the "strange man" has a gambling system. One of the rarest items is a Goose. I would think, because of the rarity, it would have been super expensive or have a joke use like as a mount or "weapon" or something. But it's only worth around 50-100, and seems to only be an animal for slaughter. Is that really all there is to the goose?