My sister's singing really annoys me. Whenever she starts I just feel like either hitting something, yelling at her or getting as far away from her as possible...I've only ever done the third option, but sometimes that's not possible - when we're in the car, for example - and it worries me how angry and frustrated this makes me - I don't know why it happens. Last night I tried telling her that her singing bothered me, and asked if she could not do it while I was around - I didn't raise my voice once, and I tried explaining what it was that bothered me about it...which was tough, because I don't really have a clue why it gets to me so much. She didn't care at all and said that she liked singing, and she'd do it whether I liked it or not. Was she right to say this? Was I being selfish?