Sorry - triggering - violence to a child. Looking for some opinions really, last night I had a long convo with my dd age 15. We were talking about her dads family as she and ds had spent one night with him. They hardly go any more, neither of them want to stay over. He lives with a younger brother and their mother. Anyway we were talking about ex's other brother who she doesn't like, and I reminded her of the time he had hit his son who was only about 3 or 4 at the time. And he hit him so hard on the back that the child vomited. I wasn't there but heard about it. I was with ex at the time. Dd started crying and sobbing and saying how could I have done or said nothing at the time, we're talking at least 12 years ago actually maybe nearer 15 years. I said I only heard it from ex and that his sil had told him about it and hsd excused her husband saying that he didn't know his own strength and didn't mean it, I never saw any violence with my own eyes, they both seemed very loving to their kids and are/were very devoted to family life. I suppose I was taken aback as it never occurred to me to go to the police. I did say if I was his wife I might leave someone who did that. But I never challenged or confronted ex brother in law as tbh I was scared of him, he is a bully to people he doesn't like or who stand up to him. Dd sobbed for about an hour about how could I have left the child in an abusive home. I got upset too thinking I had let him down. Dd said if it happened now would I report to the police, I don't know is the honest answer, Dd is very "disappointed in me