I have been attacked twice, both times in Hawaii, both times unprovoked from my point of view but probably not the Eels. First time I was just cruising the reef off of Wainaie when this BIG Green Head come rocketing out the rocks and started chase. I swam for all I was worth and he quit after about 25 feet. Second time, again in Wainaie, back when I was young and dumb I was an invertebrate collector, shrimp , starfish and the like. I use to collect on one dive and survey the next. At the time Ghost Shrimp were a hot aquarium species. I always found them in water 60 to 80 feet deep in caves. So me and my wife are out surveying and come across this cave with a little White-tip laying on the bottom, so I scoot him out and go in. Now Trish hated when I did that and would chew my butt about smacking' sharks but I did it anyway. So we are in the cave, I am up this chimney, counting shrimp , when I hear this blood curdling scream and I get jerked straight down. I am thinking WTF, Trish is giving me the Surface NOW signal so up we go. We get back on the boat and she is crying and hugging me, I keep asking her what is wrong. She goes "You didn't feel that? " I said "What you jerking me down?" She goes "No the bite", "What bite", "Look at the back of your tank". So I do and here are scratches that pretty much cover the back of the tank and the do look like teeth marks. I asked her what happened. She said she kept watching the entrance for the Shark to come back in all pissed off, when this hugh Green Head showed up outside. He took one look at my dangling legs and shot forward, mouth opened, Trish jerked me down and he bite the tank, spun around and headed on out. I never felt a thing. I have THE BEST dive buddy in the world. Lessons Learned 1. Leave Nature alone. Look take pictures leave bubbles. I quit collecting and spear fishing after this incident. Took up photography. Were these attacks, well if you consider defending your home or turf attacks, yes they were. I respect Green Head Morays to this day and give them a wide berth. Those guys get big and aggressive. In the time since I have taken some great close up shots of all different types of Morays, except the Green Head.