I bought some blueberries today and put some in Karo's dish. I don't think he had had them before and he promptly started chucking them out of the dish.
One large one landed outside the cage on the floor and was promptly grabbed by Brenne my deerhead chihuahua.
Brenne decided it was a ball and proceeded to throw it up in the air and bat it round the room. Which provided a lot of entertainment for me and Karo.
Eventually Brenne realised it was edible and it was gobbled down with glee.
Karo has yet to realise they are edible.