Nightmares

OK, my nightmare goes like this: I am on the bridge, running my evening watch as 3rd mate. I do everything that is necessary but I fall asleep... when I wake up with a shock I run to the radar and see this white line across the screen. I look outside but it is dark. I switch to manual and yank the wheel to port and while sweat is running down my back I hear the something outside, the sound of breaking waves....

There are varieties like the one where I am suddenly surrounded by a narrow river, and the ship is steaming full ahead. EVery turn I can barely make, knowing the 300m long ship turns in a radius of a kilometer. Then the captain enters the bridge and....