-your data will be lost. Also, the file is not replaced atomically.
-This method is very convenient in non-critical situations, but is
-not recommended for critical or automated use.)
+your data will be lost, although the default behaviour of \cw{-o}
+will at least avoid overwriting the file if something goes wrong
+\e{before} the output begins to be written. Also, the file is not
+replaced atomically. This method is very convenient in non-critical
+situations, such as when the target file is backed up in source
+control, but is not recommended for critical or automated use.)
+
+Another use for \cw{-o} is for requesting a list of files using
+\c{find}(1) or \c{ls}(1), without the output file appearing in the
+list:
+
+\c $ find . -type f | reservoir -o filelist