protected function username($account)
    {
        // Username's may be prefixed with their domain,
        // we just need their account name.
        $username = explode('\\', $account);

        if (count($username) === 2) {
            list($domain, $username) = $username;
        } else {
            $username = $username[key($username)];
        }

        return $username;
    }