Luckily sharks and many other predators in the wild don't like the taste of human flesh, sure, they might give you a bite or even a bit of a mauling but it's usually because they've mistaken you for something they might like, out of fear, or you've just pissed them off in general somehow
When I was in a somewhat remote area I came across what I thought to be a yellow lab so I shined my flashlight on it, but it turned out to be a mountain lion that happen to be preening at the time
I was frozen with fright, but it just gave me an annoyed glare and wondered off just a few feet past me then disappeared into the night
I've also woken up to a snake or two curled up next to me and when they've noticed I had awoke they either slithered or darted away, the most interesting looking was a small black one with a red stripe on it