[The absence of the limp is lost on Nathan. He does, however, take notice of the blood.]

... I'm sorry. It just happened while you were addressing the network. [He'd just felt more inclined to ask after Weller's welfare before asking what happened.]

[And a belated realization, but the tone that has already been set for this conversation prevents him from feeling very awkward about this:] We've spoken twice before, but I neglected to introduce myself. [Because what are social skills?] This is Nathan.