diff --git a/app/models/journeys/page_sequence.rb b/app/models/journeys/page_sequence.rb
index ce2c27b95a..a57b1801d6 100644
--- a/app/models/journeys/page_sequence.rb
+++ b/app/models/journeys/page_sequence.rb
@@ -99,6 +99,8 @@ def handle_trainee_teacher
       case current_slug
       when "nqt-in-academic-year-after-itt"
         if answers.nqt_in_academic_year_after_itt?
+          fail "How is it possible to get here????"
+
           "supply-teacher"
         else
           @journey_session.answers.policy_year.in?(EligibilityCheckable::COMBINED_ECP_AND_LUP_POLICY_YEARS_BEFORE_FINAL_YEAR) ? "eligible-itt-subject" : "ineligible"