private static function reflexivePronoun(Individual $individual): string
    {
        switch ($individual->sex()) {
            case 'M':
                /* I18N: reflexive pronoun */
                return I18N::translate('himself');
            case 'F':
                /* I18N: reflexive pronoun */
                return I18N::translate('herself');
            default:
                /* I18N: reflexive pronoun - gender neutral version of himself/herself */
                return I18N::translate('themself');
        }
    }