So, let's say I'm running some tests and run across some odd behavior that is a deviation from expected results, however, I quickly run the test again and the bug is not reproduced. I begin to question what's going on and run, say, 20 iterations of the test. I find that the unexpected behavior only occurs 9/20 times while the other 11/20 times the application runs smoothly.
I've encountered this while on-the-job in QA and when I ask about it I find that my colleagues, when shown the test, do not seem very worried about this kind of behavior. They seem happy to simply pass the test!
This has been IRKING me. What should I report? My instinct was to fail the test and go into a deeper dive around the issue. However, since this could be an issue of priority, maybe the Product Owner just wants to get other things done first. But what's wrong with logging a trivial bug? What kind of reaction should I have to this kind of a situation?