There was a Duty Officer rotation for the O-5 (Commander) officers on the USS Blue Ridge in the late 1990's. The 0-6 promotion list was out one September, and

There was a Duty Officer rotation for the O-5 (Commander) officers on the USS Blue Ridge in the late 1990's. The 0-6 promotion list was out one September, and they had fun with a certain Captain-to-be with a monstrous ego, who was quite excited to be off the rotation. They put his name down for 31-September. As expected, he achieved low Earth orbit in his rage over the affront. MORAL: date math is hard.