[ It's a lot of questions Dean's firing at him, and, well. You know. The pissiness is fine, he gets it, Cas doesn't know the answers - though he does give the angel kind of a look, like c'mon man I don't know shit about angel physiology, cut me some slack. ]

Don't poke it. Jeeze, you're like a toddler.

[ He swats Cas' fingers away, dabbing at the blood with some gauze before padding the wound and pressing another bandage gently over his skin. ]

You're not a burden. Just relax and stop moving-- [ Honestly, it really is like having a toddler (from what he remembers of Sammy's toddler stage, anyway); ] let me pack and load the car, and we'll go, okay?