I was at the marina, this summer, working on engine #2, and about 25 fire trucks showed up. Everybody went running toward the lodge - I poked my head out of the engine deck, thinking, "What the heck?"
Seems a young couple went out on the river in a rowboat, to do some fishing. Net result, two dead kids. Rough water.
I am glad I did not have to see the father carry his dead child to the rescue workers, begging for help.
And I have not mentioned any of this to my wife.
But boats just float, that's what they do, and they don't care if they're tied to a dock or mid Pacific.
Actually, more boats sink unmaintained and unwatched at the dock when a hose connection slowly corrodes apart.
Mid ocean, upkeep of the parts which keep out the ocean is VERY high on your "to do all the time" list.