According to this, they may have thought you were a large predator about to leave them some scraps 
http://en.wikipedia.org/wiki/Barracuda#Barracudas_and_humans b
Thanks Chief. I wish I had known this at the time. It would have saved me a nice pair of swimming trunks.
I had one nibble a fin when I was drift diving on a wreck off of Palm Beach once...it was a freighter that a U-Boat nailed right on the edge of the Gulf Stream, and the current was a *****. Damned shark stayed right with me, and just kept nibbling at my fin. Worst dive ever.
Man that's close. I hate having to fight a current like that. To have to contend with a nibbling bull shark on top of that would probably make me change my hobby to cribbage.
Is this the wreck...The Baja California?
http://www.bnvn.net/video/detail.php?id=599
