First, I don't think redundant gas sources are discussed in any rescue courses I've seen. Nor dealing with entanglements.
Min gas isn't even in any WRSTC agency materials (that I know of) for rescue either
Second, not all bad buddies are a$$holes either. Some of them are poorly trained, overwhelmed by stimulus. I prefer to call them Dori divers.
My "dive buddies" are good friends, not jerks/a$$holes in any way, but terrible dive-buddies. I wouldn't call them "Dori Divers", but they very inattentive and visibility is similar to diluted
. Thankfully we mostly solo-dive.
However, if someone asks to be my dive-buddy, I try to make sure I keep a close enough eye on them,even if they don't seem to do the same in return.
Body recovery can be extremely dangerous.
Absolutely. Dive Talk has a number of reaction videos and interviews of body-recovery or attempted rescues, which lead to the deaths or near-death of more divers, including ones that are many times more skilled and experience than myself or even most instructors. There may be an element of "selection bias"
(only interesting stories are covered), but it's not a rare story for what are in some cases are relatively small communities
(ex: cave diving).
particularly dangerous part of the river apparently with a number of logs jammed in the bottom that could easily trap a diver.
Thankfully, I've almost never come across similar conditions. However, that does remind me:
I once almost swam under a log I didn't see, which had a few dozen boating-anchors and ropes entangled in it. Visibility can often be inches there, but I also go really slow, and carry a serious cutting device. I cut all of the over-hanging ropes I saw, because I didn't want another diver to mistakenly swim into that, although I'm sure it'll collect more in time. I didn't feel like I was in danger, but only because I go very slow in bad vis as a rule and had a cutting-device that was overkill for the job.
