I used to find the bug myself, the one buried deep that everyone else missed, and there was nothing like that catch. Now I'm the QA lead, and I answer for quality through a team's work instead of my own eyes. When something ships broken, the blame still finds me, even though my hands never touched the test.
More people experience this than they realize.
You're blamed for quality you can no longer catch with your own eyes.
If this sounds familiar, the Library can help you find the bigger picture.