MR. MAD

There are (4) friends living together in a house. There names are Mad, Nobody, impossible, and Somebody. One day Impossible left home with his girlfriend while Nobody was fighting with Somebody. He mistakenly stabbed him. Mad tried to calling the police:
Mad: Please is this the police

police:     Yes, how can we help you ?
Mad:     I want to report that somebody killed nobody.
Police:     Thats Impossible.
Mad:  Impossible didn't do it. Infact Impossible has just left the house.
Police: Then you must be mad.
Mad: Yes I am mad.
Police:     Man you are whining us? Are you silly.
Mad: I won't repeat my self a again. Why call me silly when I've already told you that I'm Mad.