I caught 3 month old Nora sucking her fingers this past week! I've been keeping her hands covered with mittens, hoping this wouldn't happen(we're still trying to break Jane of her finger sucking habit), but somehow she got the mitten off and the fingers in. They are the same fingers Charles and Jane sucked: the index and middle finger on the left hand. Elisabeth was our thumb sucker and Annabelle sucked her middle and ring finger. Craziness!