I remember being down there (on land) and watching a rather large yacht (name - Megabyte - still remember that) come into the small lock, and his throttle stuck. He managed to spin it 90, but then hit the south wall almost head on at about 5 knots - throttles still locked. Boat screeched it's way down the wall and turned back the way it came before skippers Dad made it to the engine room to shut things down...
always a fun place to eat lunch