Cas: ...Well fuck you too, man.
He turns around and starts to walk away
Cas: Dumbass...you're not even real competition...
Cas hears that and turns around, grinning
Cas: What was that?
Cas: Hey...maybe you could stand to be a little nicer to your...competion.
He grins
Cas: Sorry, but I did tell you when we met that I had an advantage...
He shrugs, stretching a little
Cas: Eh, it's part of my job...