 
     if @amIHost
       @setMachineSharingStatus off
+      @deletePrivateMessage callback
 
 
   setMachineSharingStatus: (status) ->

      callback @socialChannel


  # FIXME: This method is called more than once. It should cache the result and
  # return if result set exists.
  listChatParticipants: (callback) ->

    {message} = KD.singletons.socialapi
    nick      = KD.nick()

    @broadcastMessages.push origin: KD.nick(), type: 'SessionEnded'

    @rtm.once 'FileDeleted', =>
      @statusBar.emit 'CollaborationEnded'
      @stopChatSession()
      @modal.destroy()
      @rtm.dispose()
      @rtm = null
