Imagine that you're someone rich. Private jet. Yacht. Multiple homes. Life's good.
Let's also say that you decide to take your yacht to Catalina. You take a woman there as well.
Do you really think it's a good idea to have everyone get stumbling drunk and then have an evening of domestic arguments while you boat to and from the shore? I mean, it's not like there's any precedent for that sort of thing, right? What could possibly go wrong?
Admittedly, this time, the girl doesn't die. But the man does go to prison for four years.
Don't drink and boat. Or fight. Especially in Catalina.