Little girl steals chocolate, blames baby sister
Even though so young, toddlers can be very resourceful. But when a little toddler tell a lie, it's not because it is developing a criminal mind. They do that because they want to remain "good" by undoing what they did so you wouldn't be angry. So encourage honesty with your little ones and show them that you trust them. Just don't crush their creative little minds.
... and disable advertisements! No kidding :)