"'All this trouble'?" He repeated, brows raising at the younger man, as if in scolding. His tone stayed even, but his eyes were hard; if by 'all this trouble' he meant 'gutting you', then McCoy would rather he not go to the trouble of it, either.

"Fine." Agreed, curtly, shortly after, with a nod. "I can do that, if you're willing to learn. Any specific injuries you're focused on, or you're thinking more in terms of preventative, a catchall?"

Snotty kid or not, healing is something he can do. Better to have purpose and direction, even in the midst of chaos. Better to hang on to that humanity.