Too Long; Didn't Read
Let’s say your services get thousands of requests per second, you log enormously and you don’t miss any exception in your logging system. Suddenly, the operation team sent you a message pointing to an error for a customer with id <code class="markup--code markup--p-code">X</code> on production and you couldn’t understand why all the people around you are over-stressed… and then the penny dropped. The customer <code class="markup--code markup--p-code">X</code> is actually a friend of the boss! (<em>true story)</em>