Help!! Family crisis, don't know what to say!!?

Alright, well, I really hate my paternal aunt, so it's good that we're usually separated by the Pacific Ocean. Anyway, she's coming over to live with me for a month (well, to live with my other relatives as well) and I just don't like her. She goes BALLISTIC about the littlest things! For instance..... The last time my aunt came to live with me (about four years ago), my best friend was living with me as well. Anyway, one day, my aunt gives me her pants to put in the wash,except she says "Don't put them in the machine, hand- wash them". My friend didn't know that and put them in the wash. When the pants came out of the wash, they were too small to fit a Cabbage Patch kid, let alone my aunt. And my God....... my aunt went nuts. She was shouting at everyone (including my boyfriend, even though he didn't even do anything) and she was pushing everyone, and you get the picture. It was pretty scary. Anyway, my cousin (my aunt's daughter) is living with us right now, so she's really excited. But I couldn't be more UN- enthusiastic in my life!! So it gets really annoying when my cousin goes on and on about how much fun we're going to have, etc. I can't tell my father about this, because that would seem offensive, I can't tell my mother, because, come on, what's she going to do? I definitely can't tell my cousin, and all my other relatives live overseas! Please help me!