What do Ты think is the worst Аниме brother или sister Ты have known so far?

Please post a picture of an Аниме brother или sister. And also give me a reason why he или she is a bad sibling and tell me in what Аниме he или she is from.

To me, the worst Аниме brother is Masamune Nakatsukasa (from Soul Eater), Tsubaki's older brother. Because he almost killed his own sister.