Do we know exactly what happened? It all seems so vague to me. I’m not making excuses for anyone but the other girls don’t seem to be afraid of him and who has not popped a sibling growing up? I’m not saying it’s right but it does happen. I have a younger brother that I just do NOT get along with, we are oil and water but it’s easy enough to keep the conversation neutral and/or keep space at a large family event. I don’t think either of us would have put my mom in the position to have to choose. It just makes me think there is something else going on, more than just one altercation.