I know this doesn't refer to your post but I had to say something here, hope you don't mind! Years ago, I and a friend were on the beach in New Smryna, FL. I was in the water at chest deep, looking toward the shore, all of a sudden something grabbed the back of my leg/muscle and about pulled me under. I ended up with four huge holes in my leg fevered night and not wanting to ever go in the ocean again! I could say a bit more about it but I am running off here on a different subject...sorry. By the way, I am in PA.