Devil’s advocate

I like to argue. I argue constantly.
I argue so much, people call me The Devil’s Advocate.
So much so, that The Devil himself hired me as his advocate.
The job pays well, since he’s always got an opinion on things, and people are constantly asking for it.
It could be worse. I could be The Devil’s Barber. That guy has to cut around the horns, but still make The Devil look stylish.
And The Devil’s Tailor need to design pants that take into account the barbed tail and the cloven hooves.
Let’s not talk about The Devil’s Proctologist, okay?