On my Freetown raid, I surfaced a little too early on my way out. It was foggy and pouring with rain, so I thought I'd pop up a little way out and head home on the surface.
WRONG!!!!!
A seachlight picked me up quickly, and I took a barrage of fire from the shore turrets and a few escorts still at dock, before I could dive again. Killed all but about 8 men, and left me with a hull integrity of about the same number. All compartments pemanently red.
With just enough men to steer the boat and drive the motors......that was a slow lonley drive home.