I'll do you one better. Here's a picture of U-333 returning home after she was rammed by the tanker SS British Presitige off of Florida.
http://uboat.net/photos/u333-damages.jpg
So you think Kaleun Peter Cremer turned around and went home when this happened? Nope! Here's what he wrote in his war diary after this happened:
"Intention- ahead into Straits of Florida. Surfaced by day, in no circumstances return home without steamer." He ended up sinking 4 ships on that patrol.