example of how closures made the code in zarah.pl look better, for gilleain

$ svn diff -r7551:7552
[...]
 sub oh_thank_you {
-    my ($sender, $attribute, $channel, $irc) = @_;
+    my ($dialogue) = @_;
 
     my @replies = (q[oh, thank you, thank you!],
                    q[you want me to leave?],
                    q[well, yeah. you're excused too.]); # '
 
-    my $reply = pick(@replies);
-
-    reply_to( $sender, $reply, $channel, $irc );
+    $dialogue->reply()->( pick(@replies) );
 }
[...]