I have several examples. I will briefly describe one. I was working with a product we just started shipping looking at a completely different matter. I observed an intermittent failure mode in the product. Since the product wasn't designed in my group and it was shipping I used a hand written note to management to explain the problem. I suggested that they make and implement a quick simple correction now and wait to see if we get reports from the field of failures. No field failures had been identified yet. I was called essentially an alarmist, a junk engineer. No correction was done. Several months later the field failures were happening enough to result in a big problem. Since I had identified the problem months before and I was never involved in the responsible group I didn't hear about the resolution for several weeks. The claimed source of the problem was that that group copied a design from my group and that I was the source of the problem. It wasn't copied, but they needed a scapegoat. But, by your logic, I was a junk engineer until we had field failures, not just in the lab.