Worst Case Scenario: Hitting A Sunken Container - What To Do!??

[NOMN]

I just watched this scary video here.

Apparantly, the guy's boat sank.

He hit a sunken shipping container.

That is MY WORST fear singlehanding, especially at night when making a 20 day ocean passage in the middle of the blue pacific [or other ocean.]



My question is: What would YOU do if this happened immediately, is there ANY WAY to repair it so the boat won't go down?!!

Imagine yourself out in the middle of an ocean, and suddenly you're hit with a loud THUD and water begins rushing in from a cracked bow or hull.

What steps would you take, and if you had immediate access to the crack, how could you seal it in time, and with what materials?!!