Every barracuda, I've seen, refused to let you get very close. They just seem to swim away when you try to approach them for a picture. Every pic I've taken has been from way above, below or from behind them.
Also, the ones that I've tried to catch on "shiny things" like spoons wouldn't even cooperate. I wouldn't worry about them too much because in clear water they usually see things for what they really are, whether they tied to a line or attached to your body.