My father and my sister argued, could you please give me some advices about this situation ?
8th january 2020 We were in Disneyland, where my sister stopped in front of rollercoaster,while my father and I keep walking .. so my sister didn't see us , and run to us very angry and screamed to my father Are you going away from here? Myfather replied : we want to leave you here ( He was joking )..so my sister get mad and kicked my father on the ankle. . My father screamed in pain.. and since then they don't talk each other.. what can i do ?