... seems to be the reaction of the average fish when approached by a cumbersome, bubble-making tank-wearing human in neoprene. This results in a lot of photos of fish tails. But I find that if I sneak along quietly without making any bubbles I can get close enough to take a cute little group of grazing fish by surprise.
Goatfish in HK
''little green jobs'' and a wrasse, Cebu
I suspect this is the strategy used by sharks to get their lunch.