Me at a previous workplace.
-This is a piece of shit, who is the code owner of this module.
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Ah, it's me ("inheriting" code ownership when someone left was common)
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Who did this change
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Ah, it was me
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Surely I just made a minor change to this line here, who wrote the function.
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it was me, it was me all the way down
Fits the general theme of the thread as it was not giving any trouble for a year before being found.