Brennan was more than a little put off. While not one to supply blame to anyone, he knew that it was probably his fault that he'd nearly fun into this guy, though considering that he wasn't even eye-level with him probably didn't help. He almost choked out an insincere apology but the mouth on his guy forced that right back down.
"I don't think I've ever seen you around before." Calm tone, even. He was really learning how to control his annoyance, something of a skill he'd picked up from having to deal with the Zimmermans. Brennan never spent much time on the intranet since it inevitably led to awkward interactions with others, and he really only used it to share information with others, and even that had the tendency to backfire on him sometimes.
Clearly, judging by the fact that the pugnacious little runt wasn't armed with anything but a pill bottle, Brennan assumed the guy was probably a medic.
"Do you have to bring that somewhere?" He asked, wondering if the man was just shirking his duties. They looked like pain medication -though there had been more than a few varieties back before the infection that he couldn't be sure what exactly they really were- but in any case, pills and survivors usually meant that someone was injured and the fact that this person had stopped to try and pick a fight with random people in the Library was really irritating him.