The frown on Bruce's face only deepens further. He understands the reasons why Kirk is doing this, yes, but it certainly doesn't make it any easier to deal with. He could handle himself - there was no need to people to try and coddle and take care of him. That effort could be put into more important things.

"I'm fine," he repeats, stressing on the word 'fine'. "I know when I need to rest. I'm sure you have your own duties to attend to." Now please just leave him alone so that he could actually go and do the things that he needed to do.