The incidents are recorded, often published, and sometimes hundreds of containers are dropped off the deck
of a container ship, at a time, in a storm. More than half of these remain afloat! These amount to thousands per year!
I have not hit one, but a friend did. It holed his bow! He managed to blindly cut through a reef in the Bahamas
, and beach his boat before it sank.
I have had close calls as well, with full size trees, (with a 20' rootball), and countless boats on autopilot
, and no watch.
This is why I chose an unsinkable trimaran
. Between the three hulls & sealed wings, collision
need not be lethal... (IF the water
In monohulls, I have seen retrofitted oval "submarine doors", with dogs
all around. If well installed at the 2/3rds to the bow point, it could help allieve "that sinking feeling"!
Something to consider...