answer: #Person1# tells Bob about the danger of third-hand smoke and concludes smoking parents should never get close to a baby or better give up smoking.
documents: #Person1#: Bob, I'm sure you know about second-hand smoke.
  #Person2#: Of course, I do.
  #Person1#: But have you heard about third-hand smoke?
  #Person2#: Third-hand smoke? I'm afraid not. What is that then?
  #Person1#: Well, it is here in today's paper. Parents may think they are protecting children from second-hand smoke when they smoke outside their home or only when the children are not there. But now researchers are warning about what they call third-hand smoke. When you smoke dangerous matter from cigarettes get into your hair and clothing. As babies are the weakest, when you come to a baby, you pass it to the baby and increase the chances of disease in the baby.
  #Person2#: Is that so? In that case I have to say that I should never get close to a baby.
  #Person1#: That's right. Actually all smoking parents should do the same or better give it up completely.