Let me rephrase(I was about to board a red-eye after a long birthday weekend in Vegas when I wrote the original post)
I really wasn't referring to legal liability with my question. I was just wondering if, as an instructor, when the boat starts sinking would you feel any responsibility for helping the students safely get off the boat, or is that completely up to the captain?
Kendall, I'm sensing a confusion over morality versus legal liability.
I'm pretty sure anyone who had their wits about themselves would help anyone else. The fact is, who and how the instructor, or anyone else, helps another has so many factors --- where was everyone standing at the time? Who needed help who was near the instructor? Maybe the wave action made the instructor the first overboard. Who knows?
The bottom line is that YOU are responsible for yourself. If you are looking for, or depending on, someone (i.e., an instructor) to be responsible for you, or to lend assistance, etc., you are in the wrong sport.
What the instructors *feel*, on dry land, no emergency, yada yada, will be a different answer in an emergency. The best answer is that you consider this situation, and on every boat you are on, have a mental plan of action if the SHTF.