Tracking some kids ip then found his social medias. And harrased him for his mistakes. Using simple java programms to change his social media/computer password. Found his cellphone number,threatened him by telling him i will post his browsing history on his school website and send it to his parents,made him apologize for what he did.
And the worst of all.. i told him that i would put his information in the deepweb if he does not apologize.
I went to psychiatrist for 2 month after that.
*edit* It was when this server was still on 1.7