The first time I went to Alaska I was on a trip with my Dad. It was an awesome week, some gear fishing for salmon and also my first time fly fishing.
I showed up at the boat launch to meet our guide for the day on the second morning, and I think someone had tipped him off about what I had packed for lunch. He asked if anyone had bananas. Not knowing anything about the superstition (or much of anything else), I told him I did. He told me to get rid of it before getting in his boat. I asked if I could eat it, and he said yes, but don't bring it in the boat.
We caught a lot of fish that day and that week. It's one of the best memories that I have of spending time with my Dad.
I have questioned a lot of things people have told me in my life but I have never brought a banana with me on a fishing trip in the 14 years since then.
Its a myth. On one of my best fishing trips ever we had a large stem of fresh bananas hanging on the aft deck of the mother-ship. GT, bonefish, bluefin trevally and dog tooth tuna all of great proportions, Oh My!
I never heard of that one, but when I guided most of us would not allow people to use the word "Wind". We told people they could refer to it as "Rapid Air Movement" or the "W" word. We told people if they used the word it would always mean we were in for some 30+ mph headwind on the Missouri River and they'd have to double haul like Lefty to have a prayer of catching a fish.
It was meant as a joke, but some people took it seriously.