I had the distinct pleasure to stand Lookout and Helm Watches on the USS Segundo SS-398 from 68 to 70.
A lot of memories I have from the Diesel Boats are from standing those watches
One of the stunts that we liked to pull, would be to make a complete circle while underway without the Officer of the Deck noticing the course change.
Now this had to be accomplished on a moonless night, no other ships on the horizon, no landmarks and the Lookouts would have to distract him so he didn't see the compass going around in a circle.........