Lifeboat Drill
Oddly enough, a lifeboat drill was scheduled for the morning that the Titanic sank. For unknown reasons, Captain Smith decided to cancel it. Experts agree that this drill would not have saved any lives, but it is a bit of a weird coincidence.
Ignoring The Warning
Nine minutes before the collision between the Titanic and the iceberg, the SS Californian signaled that it had halted for the night due to being in a field of ice. The radio operator at the time cut them off during their transmission and signaled back that he was too busy transcribing passengers' messages.