The first mate on a ship decided to celebrate his birthday with some contraband rum.
Unfortunately, he was still drunk the next morning.
Realising this, the captain wrote in the ship's log: "The first mate was drunk today.”
"Captain, please don't let that stay in the log," the mate said.
“This could add months or years to my becoming a captain myself."
"Is it true?" asked the captain, already knowing the answer.
"Yes, it's true," the mate said.
"Then, if it's true, it has to go in the log. That's the rule," said the captain sternly.
A few weeks later, it was the first mate's turn to make the log entries.
The first mate wrote: "The ship seems in particularly good shape.
The captain was sober today"