Did you ever meet a young child that you just didn't like for no apparent reason? Say, for example, you met a five year old towheaded, blue eyed little princess... and you just wanted to sock her in the nose. Have you ever had that happen?
What if she was a snitch and a tattle-tale, or a manipulator who whispered in the other kids' ears telling them to go ask for this or for that? What if she was perfect and to make sure you knew it, she would yell out "I didn't do any of that! I was a good girl" when you were chewing out the other kids for some infraction or another? What if she had to know everyones' business, be they adults or children, and she watched your every move.
Have you ever met a child that caused negative feelings to be felt? No? Yeah. Me, either.