I have an interesting story about them.
When I lived in Jamaica I used to go down our our villages beach with the kids and go swimming all the time. We used to play a game where you swim under water and try to grab ppls feet and pull them under. Our villages beach allowed you to walk (6' deep max) for 100's of yards off the shore.
One day we were playing and I was swimming under water, when I came up I was very far from shore and ALL the kids were basicly running to shore (cloest one was at least 100 yards from me). I was in about 4' of water. I started to call out to them asking why they were leaving, the oldest kid told me to come to shore but NOT TO RUN, whatever I did don't swim and DO NOT RUN. I really had no idea what he was talking about and could hardly hear him, then bump, bump bump bump into my legs. It was a fairly dark time of the day and I really was having a hard time seeing the ocean floor, but I could feel these bumps into my legs. I begin to get pretty scared and started to walk very fast to shore. They started telling me to slow down, but hell I was being bumped by something and I couldn't make it out, slow was not what I wanted to do.
After I got to 3 ' water I could see these long fish all around me, I was freaking out, since these fish seemed to scare the hell outta the kids and I lived in a damn fishing village (if anything I woulda thought they were getting out to get something to catch these fish).
When I finnaly got out I had some choice burises on my legs, the kids informed me that I just walked out of a huge hunting party of cuda, and I should thank Jah I never got cut, or it coulda been real bad for me.