Here was the question you were asked:
So I am quite curious about the answer, because even the one DevonDiver facetiously suggested does not work. Drownproofing is a skill that is valuable when you have to spend a very, very long time in the water without hope of rescue during that time. If you fell off the boat in nothing but a Speedo, you could casually swim back to the boat, where you would normally find someone laughing at you before helping you back on board. You will not have to spend hours floating next to the boat while everyone else wonders what the Hell you are doing.
So I will repeat the question. Under what reasonably possible circumstances would a diver expect to be on the surface alone for a very extended time without hope of rescue and without any source of buoyancy?
Here was your answer:What's our scenario for needing it? Falling off the dive boat in our Speedos only?
You were asked to suggest a possible scenario in which the skill might be needed. Do you see that you did not answer the question at all? "Any unexpected scenario" could include a martian invasion or the arrival of the Spanish Inquisition, which is never expected. A key rule of all instructional theory is to avoid teaching something that is unnecessary, since doing so interferes with the student's ability to learn what is necessary. To do that, you have to deal with probabilities. You could argue, for example, that all advanced scuba classes should include instruction in French, since the diver may someday be in an emergency situation in which the only people around spoke French, but I would argue that the scenario is too unlikely to make a French requirement for scuba instruction necessary.I would say: any unexpected scenario where you would find such a skill to be helpful. It seems prudent to me to expect the unexpected.
So I am quite curious about the answer, because even the one DevonDiver facetiously suggested does not work. Drownproofing is a skill that is valuable when you have to spend a very, very long time in the water without hope of rescue during that time. If you fell off the boat in nothing but a Speedo, you could casually swim back to the boat, where you would normally find someone laughing at you before helping you back on board. You will not have to spend hours floating next to the boat while everyone else wonders what the Hell you are doing.
So I will repeat the question. Under what reasonably possible circumstances would a diver expect to be on the surface alone for a very extended time without hope of rescue and without any source of buoyancy?