Well, we have seen the Top replies given by programmers when their programs do not work correctly. Here is a list of reasons given by testers when they do not report or even find (important) bugs.
I found this bug BUT…
1. It was not approved for submission (by the test lead/ test manager/ fellow testers/ programmer).
2. The bug report was rejected. (never mind the reason of rejection!)
3. This bug is reported but as part of another bug report which is still open.
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