def _are_safety_checks_disabled(self, caller=u"unknown_function"):
        """
        Return ``True`` if safety checks are disabled.

        :param string caller: the name of the caller function
        :rtype: bool
        """
        if self.rconf.safety_checks:
            return False
        self.log_warn([u"Safety checks disabled => %s passed", caller])
        return True
Return ``True`` if safety checks are disabled.

        :param string caller: the name of the caller function
        :rtype: bool