diff --git a/README.rdoc b/README.rdoc
index f7cdfb9..18f99af 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -109,6 +109,8 @@ Field name strings/symbols are shared across all the rows so only one object is
 
 Rows themselves are lazily created in ruby-land when an attempt to yield it is made via #each.
 For example, if you were to yield 4 rows from a 100 row dataset, only 4 hashes will be created. The rest will sit and wait in C-land until you want them (or when the GC goes to cleanup your Mysql2::Result instance).
+Now say you were to iterate over that same collection again, this time yielding 15 rows - the 4 previous rows that had already been turned into ruby hashes would be pulled from an internal cache, then 11 more would be created and stored in that cache.
+Once the entire dataset has been converted into ruby objects, Mysql2::Result will free the Mysql C result object as it's no longer needed.
 
 As for field values themselves, I'm workin on it - but expect that soon.