I was recently in Turks and Caicos when I saw a diver getting a shot of a sleeping nurse from about a meter away with a strobe in its face. Luckily, the shark didn't wake but if it did things could have gone bad fast. Even though it is a nurse, a sharks a shark and I'm pretty sure they're not to be messed with. I'm not a professional photographer, but how far do you go before you call it quits?