The way I've learned it is, that the banana is a symbol that represents the land gods. And we all know that the land gods and the sea gods don't get along. So, it has always been my attitude to not mess with that. Also, ask any commercial fisherman if they ever had any bananas on board.
I have seen this alot in the Great Land. As you walk down the dock in the morning there's a few bananas lay'n around.
On another note there once was a native American from NM, that was on board with us that whipped out a banana and started to eat it while I explained this theory. That smart@$$ proceeded to catch one of about every game fish that there was to be caught that day.Needless to say I took a bad ribbing all the way back to the harbor. To this day I have never seen anyone catch such a variety of fish.