Guys please read before throwing rocks.
This happened in early february 2009. I had done the OW in December and one more dive (that makes 5 dives). Then I decided to go to the sea. So I went to Arraial do Cabo (Rio de Janeiro - Brazil).
There I've done a total of 6 dives in 3 days everything according to the NAUI Tables (the dive sites were very shallow 16m max). Each day with a different boat.
On the second day, I had a divemaster as my buddy and he felt we could do more challeging dives. In the first dive (it was my eighth logged dive) we've sepparated ourselves from the group, and went to a place filled with narrow rock formations we've keeped passing through them. (I absolutely loved it!)
In the second dive he asked me if I have ever ran out of air. I told him I haven't, so he said we would make a very physical dive with the intention of burning out my air. I am a very physical person and I enjoy this tough situations, so I agreed. (NOTE: I really was OK with it I wasn't ashamed to say no or anything)
We went down, we swam a lot until the gauge showed 125bar I gave him the half-cylinder signal. He OKd it and told me to keep swimming. Around 5 minutes later we've arrived at a clearing of sand surrounded by rocks. It was by far the most beautiful dive I've done. We stayed there for a while until my gauge marked 70bar. I showed him and he signalled me to turn and swim (underwater) to the boat.
I kept a close eye on the air gauge and remmained signaling to him every 10bar drop on the marker. He OKd it and gave me the "keep close" signal. When the needle marked 40bar it became very hard to breath (we were at 15m). When it dropped to 30bars I couldn't pull any more gasp. I looked for him, and he was some 7 meters away (a bit to far I might add). I've swam towards his reserve regulator, it was clipped by a very cheap clip and it was quite hard to pull it out, I forced it and the clip broke. I breathed OK and we surfaced. At the surfaced I've filled my BC and we swan some 30 meters to the boat.
My analysis:
It was a great dive, the conditions were safe (no current; good visibility; shallow etc.) and it was a good oportunity to test me. In the time I didn't really cared. But now I'm far more experienced, am doing the DM course and I came back to this "event" and started reffering to it as a nearly miss.
I am a strong believer of training and I think we should simulate emergencies in good conditions. But about this incident there are some points that i would point out:
In the points I will write "He should..." a lot. I know that no one is responsible for you but yourself, but there was 2 guys, a young SEAL wannabe in his 8th dive and an experienced DM. I think HE SHOULD.
01) Far too Green
No matter what I had only 8 dives, I don't think the DM should have trusted so much in me.
02) Too deep
Although we were not actually DEEP, for a real out of air exercise we should be closer to the surface (5-8 meters). First because of the safety stop. Second if I tryed an emergency ascent, it would be easier and less risk.
03) Too far
He should have kept closer to me, I know he was guiding and it was my responsibility but then again, he could be more careful.
04) Those F_____ clips
The clip got stuck and I had to force it, had I been weaker it wouldn't break and I would go for his regulator. I should have tested it before but... (By the way: I don't use clips for the reserve, nor I put it in the BC pocket, it should be VERY visible and easy to pull; I think the best alternative is the default in the shoulder of the BC)
Well that's it, please comment and debate.