I'm not sure if this counts, but why not try.

My sister (i'll call her M, she's 3 years older) and I dont get along too well. Pretty much after I was born, she gained a big attitude. Not only did she get very angry and stubborn if even something a little upsetting would happen, but she also forced me to do things (nothing inappropiate, just controlling). But, when she would get upset, she would refuse to do things, and cry and scream a lot. So, as parents do, they would try to get her to calm down, or at least stop crying; something. Now, my mom comes from a dysfunctional family (drunken father, etc.), and we've talked about my 'trauma'. She's said that she feels bad for not noticing me and what was happening. The thing is, it would turn into giant screaming and crying matches with my parents and M. This would scare me a lot, as you would expect from a little kid. So, I would run the farthest away from the noise, and cover my head in pillows and blankets while i cry. Repeat everytime someone would get upset.

M would also make me do what she asked. Playing a game? I'm the guy (we're both female). Or i'm the ogre. We actually used to have a 'game' called (titled by M) 'You be my servant, and I'll tell you what to do'. I can't make this sh-t up. She wants a glass of water? I'll go get it. It soon became a habit. And it sucks. Now, I do it just to stop her from getting angry. When she's angry, its even worse. We both get angry, and start to basically call each other out for being jerks, to put it lightly. I'm usually the first to give up, as it brings me near to tears. So i run away, and start to cry. The next part is even worse. She hears me crying, and asks me why I'm crying. Like hell I'm gonna tell her. She should know. She used to tell me to "Stop crying. Why are you crying? You never stop crying. Get a grip." And then, later, she'll be like, "Is there anything i need to apologize for..." I tell her no, it's fine. Even though I'm probably still mad at her. I just wish she would stop doing that, because she should know if she needs to apologize. I wish I could tell her. But the fear of confromtation kicks in, so no thanks. There's more I'm gonna talk about later.