public void checkForDelete()
{
    List<CallServicePart> currentList = mUnansweredQuestionMap.get(mCurrentCallServiceCall);

    Observable.fromIterable(currentList) //
              .count()//
              .subscribe(iCount ->
              {
                  if (iCount == 1)
                  {
                      mUnansweredQuestionMap.remove(mCurrentCallServiceCall);
                  }
                  else
                  {
                      List<CallServicePart> list = Observable.fromIterable(currentList)//
                                                             .toList()//
                                                             .blockingGet();
                      list.remove(0);
                  }
              });
}