(define (random-t-rex-quote #!optional (retries 1))
  (let ((result ((sxpath '(// (div (@ (equal? (class "randomquote")))) a *text*)) 
                 (call-with-input-request "http://www.qwantz.com/index.php" #f html->sxml))))
    (if (pair? result) 
        (car result)
        (and (> retries 0) 
             (random-t-rex-quote (sub1 retries))))))