def fake_experimenter(request, default_name='All members'):
    """
    Marshal faked experimenter when id is -1
    Load omero.client.ui.menu.dropdown.everyone.label as username
    """
    label = request.session.get('server_settings').get('ui', {}).get('menu', {}
        ).get('dropdown', {}).get('everyone', {}).get('label', default_name)
    return {'id': -1, 'omeName': label, 'firstName': label, 'lastName': ''}
