I surfaced in a heavy storm to replenish oxygen and charge the batteries a bit. My watch crew failed to notice that we surfaced directly astern of a Nelson-class battleship. I wish I had taken a screenshot - we were so close it was amazing - watching those giant screws come out of the water as the ship slid down a heavy swell was a sight to see.
I was tempted to seal the hatch and leave them on deck, but chalked it up to extremely poor visibility due to the weather. I'm pretty sure they all needed to change their trousers after that incident.
