You're completely right. It would be a great way to tell them apart. The normal kids will be the ones who resent you for inflicting pain and misery (as they un

You're completely right. It would be a great way to tell them apart. The normal kids will be the ones who resent you for inflicting pain and misery (as they understand such) on them for no reason they understand. The sociopaths will be the ones who figure out what you are hoping to impart to the children and regurgitate it back at you.