diff --git a/examples/todomvc/src/todomvc/events.cljs b/examples/todomvc/src/todomvc/events.cljs
index 34cae905..257ac235 100644
--- a/examples/todomvc/src/todomvc/events.cljs
+++ b/examples/todomvc/src/todomvc/events.cljs
@@ -7,6 +7,8 @@
    [malli.generator :as mg]
    [day8.re-frame-10x.inlined-deps.re-frame.v1v1v2.re-frame.core :as rf]))
 
+(reg-event-db :bad-event (fn [db _] db))
+
 ;; -- Interceptors --------------------------------------------------------------
 ;;
 ;; Interceptors are a more advanced topic. So, we're plunging into the deep
diff --git a/examples/todomvc/src/todomvc/views.cljs b/examples/todomvc/src/todomvc/views.cljs
index abf7d39a..5a731c85 100644
--- a/examples/todomvc/src/todomvc/views.cljs
+++ b/examples/todomvc/src/todomvc/views.cljs
@@ -98,7 +98,22 @@
     [:a
      {:on-click #(dispatch [:flood])
       :style {:cursor "pointer"}}
-     "Flood Events & app-db"]]
+     "Flood Events & app-db"]
+    " | "
+    [:a
+     {:on-click #(dispatch [:bad-event])
+      :style {:cursor "pointer"}}
+     "Dispatch Test Event"]
+    [:br]
+    [:a
+     {:on-click #(re-frame.core/clear-global-interceptor :day8.re-frame-10x/internal)
+      :style {:cursor "pointer"}}
+     "Break Event"]
+    " | "
+    [:a
+     {:on-click #(do (day8.re-frame-10x/fix-db-noop))
+      :style {:cursor "pointer"}}
+     "Fix Event"]]
    [:section#todoapp
     [task-entry]
     (when (seq @(subscribe [:todos]))
diff --git a/src/day8/re_frame_10x.cljs b/src/day8/re_frame_10x.cljs
index 0af31390..7ebe5837 100644
--- a/src/day8/re_frame_10x.cljs
+++ b/src/day8/re_frame_10x.cljs
@@ -146,6 +146,14 @@
   (patch-wrap-funs)
   (patch-next-tick))
 
+(defn fix-db-noop []
+  (re-frame.core/reg-global-interceptor
+   (re-frame.core/->interceptor
+    :id :day8.re-frame-10x/internal
+    :after #(assoc-in % [:effects :db :day8.re-frame-10x/internal] (gensym)))))
+
+(fix-db-noop)
+
 (defn init!
   []
   (patch!)
diff --git a/src/day8/re_frame_10x/tools/metamorphic.cljc b/src/day8/re_frame_10x/tools/metamorphic.cljc
index 57b8cf44..b7632200 100644
--- a/src/day8/re_frame_10x/tools/metamorphic.cljc
+++ b/src/day8/re_frame_10x/tools/metamorphic.cljc
@@ -220,6 +220,13 @@
      (let [current-match  (:current-match state)
            previous-event (:previous-event state)
            no-match?      (nil? current-match)]
+       (let [m (zipmap [:no-match? :quiescent? :start? :run? :state]
+                       (map boolean [no-match?
+                                     (quiescent? event)
+                                     (start-of-epoch-and-prev-end? event state)
+                                     (event-run? event)
+                                     :else]))]
+         (println (first (first (filter (comp boolean second) m)))))
        (-> (cond
 
               ;; No current match yet, check if this is the start of an epoch
diff --git a/src/day8/reagent/impl/batching.cljs b/src/day8/reagent/impl/batching.cljs
index 77e7d115..b369c572 100644
--- a/src/day8/reagent/impl/batching.cljs
+++ b/src/day8/reagent/impl/batching.cljs
@@ -16,7 +16,9 @@
        {:op-type :raf}
        (f)
        (trace/with-trace {:op-type :raf-end})
+       (println "scheduled.")
        (when (false? (.-scheduled? reagent.impl.batching/render-queue))
+         (println "attained quiescience.")
          (trace/with-trace {:op-type :reagent/quiescent}))))))
 
 (defn patch-next-tick