If it's me or the shark, no matter how small the risk is, i would take a shot with out blinking. I have a wife and a child to care for a career to think about and although we are a visitor in there world i still don't think it justifys having to wait until my life is on a thread before i take a shot.
if you are at the point of thinking me or (it/them), then the line is drawn isnt it? the decision made in the mind long before the interaction, for a timely self preservation response this is the best option. that much I completely agree with you.
but be cautious of pre-emptive contemplations that can yield to pre-emptive ramifications. e.g. a missed shot!! if it comes down to it; I would feel safe with,
point blank to the head as a last resort to survuval, then the knife comes into play. with the range of many bluewater guns, you may not be giving much time for a change of intentions from the predator, and you might be risking a cruitial chance to simply jab it away. there is a reason Stingrays have barbs; most likely, call this a hunch, to avoid similar predation. Millions of years of evolutionary response cant be wrong. it is only recently we see how effective this evolution really is, and I see it as a natural defense mechanism that some of us get a chance to learn from.
I wouldnt dare suggest risking your life and family for preseving wildlife, the choice is always ours individually, and we either live or die with those choices, I am just stressing to make it a careful, and wise one.
P.s. I wouldnt kill a blue marlin if I saw one and was prepared for it. I am not a trophy minded individual, ok maby one GT but for keeps and a meal,
nor do I fall for the super hottie that walks into the party, except for the one that I married, but she had an irresistible mind that lured me to new depths of grandure. but as a small word of advice, if an unfriendly girl walks into a party it might be wise to leave the room before her unfriendly girlfriends follow suit, or you might suffer the bitch slapping frenzy of a lifetime, and it might not even be about you. I used to have two friendly girl room mates, and when they turned on eachother it was time for me to leave!
"to shoot or not to shoot, that seems to be the question? you answer; while, "to exit the water or stay", was I believe the one posed.