I don't really care what's going on I just care about getting my job done the best that I can possibly do and deal with the other things in my life that take a lot of time and a lot of thought.
Any great character is the combination of a brilliant actor and the right writing.
No one in the whole movie ever asks anyone, Did you write this letter' Part of the reason is that no one wants to hear that it isn't for them. As soon as they read it, they want it to be theirs.