For me it is coming up to close to 30 years ago. I volunteered for Big Brothers.
I was freshly separated from my first wife(no children) so I felt a need to give.
I was never told what the youth I was supposed to mentor had done but I am guessing it was break and enter. Even while I was mentoring him he had reoffended but I was never told what he had done nor did I ask.
I used to take "Joe" out for long walks in the country.I am guessing Joe was about 16 yo. We were walking along a country road and came across an abandoned house.
Doors were wide open. I suggested that we take a walk through the house. He responded "yeah".
I would listen to him and was very patient. He had a mother but no father around. I really don't know if I made an impression on him. After a few months he moved down east to be closer to some relatives. That was the last I heard from him. As the above says don't have high expectations of your subject. All you have to do is be a decent human being.....
G.