If only there was enough common-sense to have a rescue vessel close by.
Titanic Submarine Situation Is Crazy https://www.youtube.com/watch?v=9tmwpE07CFE
If only there was enough common-sense to have enough lifeboats on the Titanic...
Sometimes common-sense contingencies seem to be forbidden.
https://desertshapes.blogspot.com/search?q=Titan+Sub
https://thedigitallabyrinth.blogspot.com/search?q=Titanic+Sub
