I had a big discussion on this yesterday. I was at a funeral and it turned out that three of us (including the deceased) had suffered sexual abuse as children. I hadn’t personally but I was physically and emotionally abused by teaching staff, and heard stories of sexual abuse at schools I was at. In the case of the deceased, I wonder if he was how he was due to this abuse. He was a bit ill at ease with life and carried about a sadness with him.