I worked on a cruise ship for three years! I've got a lot of these kinds of stories, but here's my favorite one:
Our ship officers got a call from a ship of a completely different cruise line, off the coast of Cozumel, Mexico. They found one of our passengers floating in the ocean. He wasn't even near the shore at all, just floating in open water. He was alive & perfectly fine.
They reviewed the security footage, & in the middle of the night this guy was drunk on Deck 5, & could be seen holding his phone, dancing to music by himself. He then climbed onto one of the lifeboats, & did a RUNNING JUMP into the ocean. He left his phone on top of the lifeboat. His body was so fluid from being drunk that he wasn't injured when he hit the water. The cruise ship spotted him & rescued him. His family didn't know he was missing because he had booked a separate room.
This guy told the news that a rogue wave pushed him off the side of the ship. He was on Deck 5, so the wave would have been over 40 feet tall…
Don't know what happened after that. The entire crew was talking about it for weeks before it hit the news, though.
Edit: here’s the article on the incident! Some of you are asking if it was a suicide attempt, & I don’t believe it was. He was dancing for a while by himself & seemed to be just really really drunk & having a good time. He was screaming for help when he was rescued, but ultimately he’s the only one who would know.