I was asked to integrate a piece of industrial software which was pre-alpha in a prod to align with corporate objectives. It would have caused all kinds of production problems and instability. Nobody would even notice that it wasn’t there. I procrastinated for eight months until version 1 was released.

I told my manager it was done. Then he informed me that it had been working the whole time and he got plenty of positive feedback so i should roll back to the old version until we can do a planned upgrade. I nodded in agreement and put off the downgrade.