You guessed it... show_slaplines ;)

CONFIG-README

@@ -129,6 +129,9 @@ show_actionline      1 or 0, this will add an example-actionline to the
 show_shoutline       1 or 0, this will add an example-shoutline to the
                      "Most shouting people"-stats
 
+show_slaplines       1 or 0, this will add an exaple-slap to the
+                     "Most slaping" and "Most slapped"-stats
+
 ignorewords          A space seperated list of words to ignore in 'most
                      referenced words'