Bad guys are a cowardly and superstitious lot. And they don't like being eaten by sharks. So you'll become a creature of the ocean... Grey... Terrible. Then again, a shark costume might be a little cumbersome. And the dorsal fin would make it hard to sit in chairs. Maybe you'll just stick to wearing these snazzy boots, and find a different gimmick. Perhaps you could be some kind of pterodactyl...