Yeah, they are, but it's still nice to have her around, because it you didn't have her your be all alone in the world. But if she gets too annoying to go your room lock your door, and maybe she'll leave you alone. Or if you want get your video camera, phone, or tablet and video tape her she might tell, but that's just what little sisters do. Now take that video and show it to her, and tell her your gonna put it on YouTube unless she behaves. I hope it works, and it it doesn't dump water on her to cool her off!