I have been on a lot of cruises and never fell off. Then again I didn't want to.
Mr. Gramps, I am flabbergasted that you have been on a lot of cruises, spending as much money as the BO family on vacation. or the Clinton's millions spent on Chelsea's wedding. That cash could have gone the the professionally needy. You must be embarrassed to think how many lives you could have saved, how many mouths you could have fed to make them just satisfied enough to create some more mouths to feed, and how much sickness could have been replaced with good health, just because of your on selfish requirements for earthly pleasures. You should be ashamed for - in a sense - taking a rented private jet/yacht for a vacation from an already rich life.
The way I do it, it isn't expensive. I live near to where the ships leave. I don't need to fly to get to a port.
Gramps
Maybe they got drunk and jumped off the ship. Maybe they didn't get drunk and jumped off the ship anyway.
Why do people jump off of bridges? They probably jump off of ships for many of the same reasons.