[Well, at least he's not horribly mangled, right? Sokka stands on the threshold, unsure he wants to make the time commitment to stay. Then again, he could use some of the tea himself...]

It's not a problem. I'm on the police force, so if there's anything like that again, you can call me next time. Maybe before you end up with a broken nose...

[Sokka steps inside and offers the bowl of bark and the rag. He's met the Doctor before, but his mind has since been altered by the Master to completely forget the pertinent details of their meeting (and the fact that the Master had murdered Sokka's good friend, Aang). So, really, this is a bit like meeting again: We're sure you're familiar with that, Doctor!]