My younger brother (16) and I get along pretty well, I mean we have our squabbles, but I'd say we're good friends. Sad (and strikes me as childish) that you guys are wishing your siblings would die... 
Even if you are joking, that's something you would regret saying if, God forbid, anything were to happen.
Good for you, but most families who live in the real world don't get along. You need to remember every Christmas there is always a family argument. Just there my Ma and her sister got into a huge argument, starting slapping each other. Pretty funny
But when you're a twin, it gets really, really annoying. I don't think Treble can vouch for this cuz he has a twin sister, I wouldn't mind that. But a twin brother is horribly. He looks exactly like you, when you are younger you get dressed the exact same. Grandparents always buy the same socks and pyjamas for us. They say "Oh but it's different colours!" When you have a twin like me, you'd wish you weren't. I have spoke to many identical twins in my live, they all say the same
