Here is the follow up to my genba experience a few days ago...
As you may recall, damage was done to a mold accidentally. I followed up the other day after he had fixed the damage and thanked him for the fix, but also for considering my request to think about preventing recurrence.
He said that he had thought about on the long ride to the mold shop and had decided that he could prevent it with tools that were softer than the tool steel he was worried about. A brass punch and aluminum faced hammer were on order and on their way! (The old tools were thrown out!)