Well maybe its time to start putting magnets into surfboard builds??? lol http://now.msn.com/now/0514-shark-repelling-magnets.aspx
Yea I found this one youtube here. Ive also heard their tip of their nose/snout is very sensitive, so if your getting ate by one "try" to remember to hit it in the nose! I have some little neodymium magnets maybe I'll wax them up and toss into my pocket next time, though the poles would have to be facing the proper direction, and it seems to only work within reach of the shark.
I think an appropriate test would be a dead bloody seal with like 10 neodyniam magnets in it. then we could see if magnets really worked... lol. I guess until we know we'll just have to kick them in the nose... lol.