Somethings wrong with my friend, help please!!!?

that really is insanity. not only could he be a danger to himself but obviously a danger to others. i wouldnt suggest you tell on someone in this state but it seems to have got to the point where someone could get hurt other wise. i would tell him parents what you have said here, get him to go to a doctor or at least talk to him seriously. this isnt normal behaviors and you are right to be concerned. goodluck