When Harry Discovered That He Could Abuse Legilimency

Harry's childhood was rough (really extreme understatement), Magic couldn't save him from that. But he was determined to move on with his life by solving that problem (UnDerStateMent). Later in life he'll be abusing his magic. Legilimency to be exact. Why? Uhh, I guess the moral of the story is that Power Corrupts. (This story does not make any moral statements, even when it does)