This is three and a half minutes worth of evidence to never go into the ocean ever again.
As she put it herself:
I'm not advising that people go out and just jump in to the water with White sharks or Tigers or other large species, just as I wouldn't recommend jumping into a yard with a strange dog. Sharks do need to be respected as wild animals and appreciated for their role as top predators in the ocean ecosystem. My shark experiences have all been positive in part because while I know sharks are not mindless man-eaters, I simultaneously have respect for their capabilities, a lot of experience interacting with animals and reading body language, behavior, and I am comfortable with my own water abilities while also trusting my dive partner.