Please I need to hear from experienced parents in the house. I have this issue that I feel needs to be shared so that I can get advice on it. My girl will be 4 in few weeks. The second is above 2.  Her sister beats her and she cries. This get me irritated always. And I always tell her, u re the big sister, can't u beat your own back? She is just too quiet and on few occasions I have seen her in school with that weakness. And I always tell her when someone beat you, beat your own back. I am not trying to make her a trouble maker, but a least, when they beat her she should respond. The second one is the exact opposite. As old as you are, if u beat her, she will try to get back at you. I think the first kid took after my dad. My dad was a perfect gentleman. This my daughter is good at everything else, she's athletic, intelligent and very outspoken but for some reason, she cries when her younger sister beats her. So experienced fathers n mothers in the house, how did you handle this type o kid o..