I figure you're not going to see the one that bites you, so don't stress.
Having had a shark in my fins and not known at the time what it was (I thought it was my dive buddy trying to make me sh!t myself, which it did, but not for the reason I thought) I haven't changed my mind.
How did I know I had a shark in my fins? My dive buddy told me afterwards. It was following me around and when I stopped suddenly on the bottom it ran into my fins.
I had no idea.
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