H.A.T.S.
A hate-filled family fight where you have to respect the enemy even if you want to punch them. Usually happens between siblings who are at least 3 years apart.
I hate my brother, but I have to honor him because of H. A. T. E.
Why do I have to respect my sister? It's H. A. T. E.!
My cousin hates me, but I have to honor him. It's H. A. T. E.