Catholic Kittens

One day a Catholic Priest was walking down the street and saw a little girl on her front porch with a box of newborn kittens.
The little girl greeted him, "Hello Father; these are Catholic kittens."
The Priest replied, "That's nice. Bless you child."
A week later the Priest saw the little girl again with the box of kittens and asked, "How are the little Catholic kittens doing?"
The little girl solemnly informed him, "They are not Catholic kittens anymore, they are Atheist kittens now."
The Priest was shocked, "What happened?!"
The little girl grinned, "Their eyes opened."