Fact: Karen is childish.
Whoever who disagree with this statement have not seen the immature side of her.
She's super childish.
Evidences:
1. lame comments
2. sticking out tongue for no apparent reason
3. denial of being childish(that's it, childish people will never claim that they are childish)
Karen's excuse for behaving like that: she's the youngest gal in class.
Oh whatever Karen, you're 16! Grow up! :)