Plenty... worked in prisons, both juvenile and adults and worked in closed Youth Service centers where they were in programs after a judge has them placed out of their homes. I've worked with teens(boys and girls) that were giving the predicate "non responsive to treatment" in files and were devoid of certain markers while having anti social behaviour patterns consistent with ASPD/cluster B personality traits. Kids that killed pets, harmed siblings,sexual abuse of siblings/peers, manipulating peers into prostitution, extortion and even murder. I specifically remember this one kid. He was pupil and I was working with the psychologist team on a treatment plan for his violent behavior which was not explosive but instrumentally put to use to intimidate and manipulate the other kids. He was transferred after it was found out he was extorting girls from another group and was using another boy with impulse regulation issues ( grew up watching physical abuse from his dad on his mom) as muscle to beat up kids that didn't want to pay him(money or sex). I met them both about three years after I left that job and they had ramped up their activities. The ASPD kid had got a sentence which basically meant a custodial measure for mentally ill offenders,this doesn't exist in the US but it means you are forced to be treated for your mental issues and a judge can prolong this measure until you are deemed sufficiently treated. I met them while he was on leave and laughingly told me how he was manipulating the psychologists and doing the same shyt in the new facility and was scheming to get with one of the interns and fukk her and then extort her to bring in dope and a cell phone,he was 13 when I met him. The other one was convicted of manslaughter two years later and almost killed another inmate that same year,he was 15 when I first met him. I promise these are humans you would not want to be in your neighborhood or at school with your kids, absolutely not an ounce of empathy or feelings towards others.