I know a little: חַ יָ ה רָ עָ ה wild kid, a tiny 6-year-old who wrecks his house. He fights with his siblings, and can be quite abnormally chutzpadik to his parents. Al Pi Tevah (normally) this boy was heading for a sad crazy life, especially since his parents are always screaming and criticizing him. I once went over to him, and complimented him: “Aderaba, I love wild kids. They have so much energy and so much Simcha!”. These words had a big effect on him. He is still wild, but he developed a soft-side, and he became more human!
This was Pikuach Nefesh Mamash. A younger sibling was going through Gehinom, being bullied by his older “wild Indian” of a brother. The boy looked depressed, and avoided people. I went over to him, and told him: “I love you the most in the family.” I tried this many times, with no results... until recently he started smiling and talking to me! He’s a new person, with Hashem’s help.