How about.... test this new feature in an app. 2 days later you check and they say no bugs to report so far but still testing some scenarios. Then you realize y

How about.... test this new feature in an app. 2 days later you check and they say no bugs to report so far but still testing some scenarios. Then you realize you forgot to add a necessary file, schema update, etc. That means the person testing could not have possibly been testing as the code would have errored in the first few minutes.