I was a good kid, if not opiniated, but my parents beat me whenever I spoke back, even though they would later state that I was always right.
Then I began to flinch as a reaction from this beating, and all my peers saw this as a weakness, and from a non swearing, animal loving, peace keeping little kid, I became a kid in the center of trouble, always, even if I wasn't neccarly commiting it.
Serves my parents right. :P
And besides, people often hate people that act exactly as they do themselves, knowing this just adds to the hate (IMPOSTERS!!!:K).
Needless to say, the sweetest thing in the world is seeing a smartarse create piles of shit, expecting you to clean it up, and then being forced to clean it up himself.
That and clicking and watching the cofidence and security of someone wipe away, even when they're larger than you, you taste the fear, and then unleash hell.
I would say kids do grow out of it, but I know people (mind you they're my age), they get a bolliking, they're in tears, but the next day, they're back to their own habbits, becuase according to them, it's not their fualt, it's yours.
And I know others that have had sollid reflection times during films of kids getting bullied and killed, and they apologize for one day, then the next day if it's as if nothing has ever happened.
You can never change someone, they have to do it themself, that's what makes it so hard.