whenever i take used to take pics of them with a strobe, the light really attracts them and once i had like 15 of them come directly at me sizing me up i guess. the dm just looked at me dumbfounded.
it was scary cause they wernt small (3.5 ft or more). they were getting really close too. i was hyperventilating and ascended a bit and then they left me alone
another time i took a pic of a sleeping barracuda about 12ft away with my strobe and it woke him. swam away and then came back to check me out. scared the s!@t out of me as he got real close.
in another night dive i was firing my strobe and taking shots at the blackness to see how far my picture would reach. a few moments later a giant barracuda was less than 10 ft away from us im sure attracted by the strobe. that was the scariest.