diff --git a/chapter_13_database_layer_validation.asciidoc b/chapter_13_database_layer_validation.asciidoc
index e4b36a53a..5ee5c5223 100644
--- a/chapter_13_database_layer_validation.asciidoc
+++ b/chapter_13_database_layer_validation.asciidoc
@@ -75,6 +75,10 @@ use to validate input, but you're always going to use the same database.
 
 ==== The self.assertRaises Context Manager
 
+// SEBASTIAN: This seems to come out of the blue, at least a bit.
+//      Would you mind finishing the previous paragraph with some linking sentence,
+//      like "but before we do X, we have to know how to make assertions about exceptions,
+//      because exceptions are something we face when deal with failing validation"
 
 ((("model-layer validation", "self.assertRaises context manager")))
 ((("self.assertRaises context manager")))
@@ -755,6 +759,11 @@ class ListViewTest(TestCase):
 ----
 ====
 
+// SEBASTIAN: Probably this doesn't come from this chapter, but `test_can_save_a_POST_request_to_an_existing_list`
+//      looks like something that could be changed to a declarative sentence without noise like "can"
+//      maybe like "POST_on_existing_list_adds_item_to_the_list"?
+//      Also, from what I can see, other_list is not used at all in both tests. Is this intended?
+
 <1> This is where we need to make that url change.
 
 Note that the `NewItemTest` class disappears completely.
@@ -991,6 +1000,8 @@ NOTE: One of the reasons that the "three strikes and refactor" rule exists is th
     ((("Test-Driven Development (TDD)", "concepts", "three strikes and refactor")))
     ((("three strikes and refactor rule")))
 
+// SEBASTIAN: Above note is a pure gold!
+
 At least our functional tests are back to passing:
 
 [subs="specialcharacters,quotes"]