Do you do your own JCL?
I understood the question, at least. And I answered truthfully that, no, I wasn't equipped for that, not yet. But what I kept to myself was, "JCL? How hard can that be? It's just a command language for batch jobs." (I had already mastered one DEC command shell and thought I knew nearly everything.) Dan Wohlbruck illustrates how naive I was.
I didn't get the job, of course, but nearly ten years later I finally made my acquaintance with OS JCL. We have since parted, but we have agreed to remain friends.