DAY 459

From Reader's Digest
Contributed by L.S. Bowen


Before sailing as a guest on board a submarine, I asked the coxswain if there were any special  regulations to be observed during exercises. I was puzzled when he asked me how good my mental arithmetic was. He went on to explain the golden rule of the submarine service: "Count how many times we dive, add the number of times we surface, divide by two. If there is a remainder of 1, don't open the hatch."