answer: #Person1#'s tire exploded and #Person1# knocked #Person2# over. #Person2#'s ankle was therefore hurt. They find they have met before. #Person1# cancels #Person1#'s appointment so that #Person1# can stay with #Person2#.
documents: #Person1#: Whoa, whoa, what's going on? Watch out!
  #Person2#: Hey, watch where you're going!
  #Person1#: Oh, no! I'm so sorry! Are you all right?
  #Person2#: Oh. . . I don't know.
  #Person1#: I feel terrible, I really didn't mean to knock you over. My tire, just exploded, and I lost control of my bike. Really, it was an accident. Please accept my apologies.
  #Person2#: Oh, wait a second, you seem really familiar, I think I know you from somewhere.
  #Person1#: Yeah, I think we have met somewhere before. That's right! We met at Aaron's place last weekend! What a coincidence! But anyway, I'm glad to see that you're not too badly hurt, and I should probably get going. I have a nine o'clock meeting.
  #Person2#: Ouch! My ankle! I think it's broken! You can't just leave me like this! Are you calling an ambulance?
  #Person1#: Nope, I'm canceling my appointment so that I can stay here with you.