[ McCree takes the continued non-aggression as a sign to press forward. He lets his own tension settle, shuts the door behind him, and walks 'til he's right beside his new roommate. ]

Rewritin' genetic code, huh. We got tech like that, stuff that works on you on such a level. I ain't too familiar with it, though.

[ He lifts the brim of his hat, squinting at this fella. ]

I'm not the kind to pry into another man's history if he don't wanna speak of it. Just try not to electrocute me in my sleep and we're gonna be fine.