If he were paying greater attention, he would have noticed that his right arm had gone from 'dull, but still uncomfortable pain' to 'no pain at all after that last injection, in fact do I even still have a right arm?', but right now his focus is on McCoy and what the man is saying.

Doc has had to reset a few shoulders in his day.

Without numbing agents. It's practically impossible until the patient blacks out.

"This'll be great," he slurs. "It be better if I lie down? Can't...can't remember."