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(defun protect-innocence-hook ()
(if (and (equal (file-name-nondirectory buffer-file-name) "sex.6")
(not (y-or-n-p "Are you over 18? ")))
(progn
(clear-visited-file-modtime)
(setq buffer-file-name (concat (file-name-directory buffer-file-name)
"celibacy.1"))
(let (buffer-read-only) ; otherwise (erase-buffer) may bomb.
(erase-buffer)
(insert-file-contents buffer-file-name t))
(rename-buffer (file-name-nondirectory buffer-file-name)))))
(or (memq 'protect-innocence-hook find-file-hooks)
(setq find-file-hooks (cons 'protect-innocence-hook find-file-hooks)))
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