Here's a picture of the author (when younger and stupider) with an uncooperative subject. I'd already got a couple of nice shots of this girl when my buddy suggest he take one of me hovering alongside her. This was a step too far so she exited stage left at high speed.
A wobbegong shark a little bit bigger than me. Some things are not meant to be got too close to. Wobbegongs are one of those things. After she swam a few yards she resettled and we left her alone whilst I restarted my heart.