younger sibling here. Youngest of 3 actually. Always had to put up with my older siblings shit. My mom never believed me when i told her my brother was hitting me either. I know that feel bro, I know that feel
(raises... hoof? hand?) Only in a technical sense. My sister died over a year before I was born, so I never got a chance to be an Annoying Younger Sibling. My brother sure as hell did, though. Younger siblings have no idea how good they have it most of the time.
I didn't intend that to be taken 100% seriously, by the way. Sibling interactions aren't going to be identical for every family, and I'm sure there are older siblings who treat their younger siblings well. But it's also common to treat them like crap for their own amusement, which is what's happening in this comic, if you notice the air horn Celestia was holding. All generalizations are wrong, to make an oxymoron out of it.
Your brother very well could be the jerk in your family. If you're anything like my sister, though, you declare your brother "obnoxious" when he does something as offensive as softly rubbing two fingers together, or trying to talk in your presence. And I wonder if your brother ever sat on you and spit in your eye, broke into the locked bathroom while you were using the toilet, or trashed your room just for the hell of it, including stealing things and literally flinging in piles of garbage, etc etc etc.
Coincidentally, someone I know recently put it this way, "I've always wanted to be nice to everyone I meet...everyone except my little sister. For some reason, I always felt compelled to torment her at every opportunity."
I see. I apologize. Sometimes I can't understand what is and isn't a joke. As for me being like your sister, well... I will admit that certain things he does bother me, even though it might not bother anyone else. Then again, my AS means that there are a lot of strange things that bother me. Thankfully, my brother has never gone THAT far. It's just that the stuff he does do bothers the hell out of me. Had my older sister survived, I probably would have annoyed the living hell out of her, too. ^^'
The love-hate relationship between siblings remains a mystery...