My most embarassing death was trying to sneak into the English Channel near Dover during rough weather. I got in quite a ways, then the weather turned to max roughness, and I got my sub beat to death in shallows. I tried to turn about, and head back out of the channel, I couldn't surface because all those Destroyers and Elcos running around forced me to stay submerged until I took one final massive hit on the bottom, and died. Thus ended my first career on my 11th patrol. (And there rests the Captain Duncan Idaho, never to sail again *sigh*). I've never admitted this death to anyone, and would probably have lied about how I died if anyone asked.
From this I learned that big waves in this game, just like in real life, can be hazardous to your health.