I won partial custody of our kids out of vengeance
I don't like my kids much but my ex-wife wanted full custody so to get back at her for divorcing me I fought for 50/50 custody. I have better things to do than hang out with little kids so I stick them in a room with a TV, game console and sodas/snacks while I work on my cars or go out drinking. Everyone's happy except my wife who wanted full custody.