this is pure musing, not an instructor, take it with a pound of salt.
i wonder if part of the class could be brainstorming every possible action with outcomes in a few relatively common panic-starting scenarios? by this i mean set up a scenario (while dry in a classroom or otherwise not actually diving) like 'you notice you're not getting much gas when you try to take a breath. what could you do next?' then lots of suggestions from and to the class with a 'what do you think might happen then?' follow up. i think if going to the surface is an option presented with some non-desireable outcomes that the 'stop, breathe, think, act' thing makes more sense. in much shorter words, it's my opinion the 'think' in that phrase should be replaced with 'think of as many options and likely outcomes as you can in a short time & the next logical step for what seem to be the best choices'. yeah, not as catchy.
the reason i'm thinking this is that i've noticed that tweens/young teens seem to think of one thing to do to get out of whatever difficulty they're in and fail to think of multiple options or the next logical step in the one they've thought of. it seems like the first springboard to more mature logic, but one that needs to be quickly augmented, a stage to get past.
Interesting post, arriving seconds before my last one.
I do indeed talk about the non-desirable outcomes. I especially talk about my nephew's mother-in-law, who had a heart attack while diving. This led to circulatory problems which led to the panicked sense that her regulator was not giving her air. She spit out the regulator and bolted. I tell my students that she almost certainly would have survived the heart attack, but she did not survive the embolism from the rapid ascent. I also have a brainstorming session in which I ask them to think of a situation that could not be solved without a bolt to the surface. They have never been able to suggest one. I pretty much never miss an opportunity to warn them about this.
The mature logic issue also interests me. I was once talking with a certified diver who was about 19. She talked about a time she had bolted in her class, and the instructor had stopped her and given her a severe warning about it. She was huffy--"this stupid instructor couldn't see that I had a perfectly good reason to bolt." I think another year or two later and she would have had a different attitude about it.