answer: Tim's in hospital because he went to save a little girl out of a firing house, which is Tim's job responsibilities. Kate's worried and hopes Tim can leave his job, but Tim won't listen.
documents: #Person1#: Oh, Tim! What happened to you? It's terrible enough for you to be here.
  #Person2#: Kate, may be you can't believe it. It is just because of a little too much smoke. I'll be back home this evening.
  #Person1#: How did this happen?
  #Person2#: I had to go into a house that was on fire. There was still a little girl inside. I got her out.
  #Person1#: But there was a lot of smoke.
  #Person2#: Yes, a lot. I had some trouble breathing so they sent me here just for the doctors to take a look at me.
  #Person1#: And now you tell me that it's all of your job.
  #Person2#: Well, it is. You shouldn't worry all the time.
  #Person1#: But I do. I hope you'll leave your job.
  #Person2#: Leave my job? No, not because of a little smoke. I'm really all right.