Very interesting reading through the replies on the forum.
No doubt more info will come out although I can not think of any excuse for what happened. A Lookout is what it says on the can.
I found myself agreeing with one of the contributers on the other forum.
As a diver I know what it is like to be near a RIB in the water and my thought too was that the last thing I would do is be in the water (capsizeing on purpose) in front of a fast moving RIB. Rather take my changes above the water.
But I guess its down to that fraction of a second decision.