(define me (lambda (code food tea) (cond ((or (null? food) (null? tea)) code)) (else (cons "public class Foo { // sigh..." (me code (cdr food) (cdr tea))))))
(define contact-me (lambda (you) (cond ((not (human? you)) "no thank you") (else (string-append (string #\m #\e #\@) "rrc.io")))))