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-rw-r--r--examples/09-ghoulspree.lisp3
1 files changed, 2 insertions, 1 deletions
diff --git a/examples/09-ghoulspree.lisp b/examples/09-ghoulspree.lisp
index a11e6a6..896f470 100644
--- a/examples/09-ghoulspree.lisp
+++ b/examples/09-ghoulspree.lisp
@@ -108,7 +108,8 @@ on which boundary VAL is outside of."
;; implicit knowledge about the imlementation of the
;; scene container. A safer way in most cases would be
;; to `collect ghoul into drop-list` and then deleted
- ;; all the collected ghouls in a `finally` clause.
+ ;; all the collected ghouls in a `finally` clause,
+ ;; or to use ww::drop-unit-if in a `finally` clause.
do (ww:drop-unit ghoul)))))
(defun random-sign ()