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Castiel stormed inside aiming directly at Crowley, and grabbed him by the collar: “What you did wasn’t part of the deal, Crowley! Just give me one reason why I shouldn’t smite you right now.”
“Oh, Castiel, always so passionate! Fine, you want a reason? You need me.”
“It’s what I thought, but I’m starting to rethink our deal!”
“I’m not talking only about our deal. With me Hell is efficient, productive, useful. Without me, it would be pure chaos.”
“Useful? To whom?”
“Oh, come on, you know you can’t get rid of Hell! It’s a matter of balance. It’s needed.”