The Most Annoying Teenager EVER!!

I knew two that seemed to have that potential. Both pulled out of it as they matured, and were lucky or smart enough to not have made stupid choices in youth that would have damaged their abilities to grow into relatively healthy adults. Both of them had very bad family histories. One's mother had died when he was very young and his father buried his grief in work, leaving the kid to raise himself. The other had been beaten nearly to death by his mother and grew up in a series of really awful foster homes. We kept him at our house as often as his foster families would allow.

To a degree, it's hard to psychologically diagnose any adolescent, because their brains are so unformed and their hormones are so out of control that they're all a bit nuts. Lacking any real concept of consequences can look a lot like sociopathy, but as their brains mature, the foundation given by parents or other influences will usually help them on a path to sanity/maturity. It's only those kids who suffer attachment disorders or severe trauma or neglect who end up "cementing" into narcissism or a sociopathic lack of empathy.

Movies are IQ tests; the IMDB boards are how people broadcast their score.