Speaking of enemy submarines...
I was making transit through the channel (near suicide in 1943) in hopes of stirring up some stuff towards the end of a dry patrol. As I was approaching the coast of France, I dove to periscope depth and made a turn back north-northwest and got a hit on the hydrophones. Target was identified as a T-Class British sub. I fired a spread of 3 electric torps at a range of 3000m. All missed the target so in a fit of foolishness, I ordered emergency surface, ahead flank, and had the deck gun manned. We sank the sub with 40 rounds from the 88.
Sadly, there were three destroyers in the AO that picked us up two hours after the attack. We limped back to base after being DC'ed for 20 hours. I still count this patrol as a success, even though my boat was almost scrap metal!