Funny you would say that, there’s a launch that I use that always has a massive pile of filleted fish on it. We put in there one day and my buddy says “hey wait a second” and starts walking into the water toward the pile of fish carcasses. I said whoa man, it’s always there, don’t walk in that mess. Next thing I know he’s holding a up a filleted flounder with a stick! I pondered forever on how that might have gotten there. Years later, I’m standing in the same spot looking into another fresh fish pile and there’s a bank fishermen there that says “nasty, ain’t it? That guy that runs the seafood market dumps his fish carcasses here.” Mystery solved