I've just read the story through.

I question the action of this guys buddies. Whenever I dive I'm always conscience of the people around me. I look out for them they look out for me. Even when I've dived with complete novices the idea that we lookout for each other is paramount.

I've dived to 100+ meters with technical divers, who are by and large an autonamous group but even so they respect the rules.

Why didn't one of this guys buddies signal his disappearance aboard the boat?

I've heard that in Australia this kind of accident is on the increase, because there is so much pressure on a dive captain to get the maximum number of divers aboard and then to take them to as many locations as possible, thus safety procedures are rushed or even ignored.

In one case a dive captain "forgot" a couple ( husband & wife) whose bodies where found 3 days later off the barrier reef and the Captain wasn't even aware they'd been on his boat.

To those Australian members of the forum I'm not singulling (sp) out Australia in particular, it's just that many of my British buddies find it "the" place to dive. Which it is, hence I've heard a great deal about it both the good and the bad.