One of the very first things that I asked (after being yelled at) when I was training to become an instructor was, what happens when student X is on the line going down and student Y is 5 ft above him with ear problems? Which one do I tend to?
The answer, which I came to understand and give to my DM candidates, was: Why would that ever be the case? You train as a group, you dive as a group, no exceptions. I remind my students that EVERYONE fails the dive if we don't act like a group.
Students need to be supervised. Of course, there are some situations in which you may leave a student behind for a second on the surface (CESA) but you should always be able to see/supervise them. One of the ways I prevent students from being left behind like that is to divide CESA up among the divers and perform CESA while ascending on Dive 2 with one student and everyone else makes the normal ascent with the DM. New student on Dive 3, etc. I will start a thread in the instructor forum specifically about this...
I am sorry about your experience and it certainly sounds like poor customer service. I would like to hear the instructors/shops side to get a more holistic account.
The answer, which I came to understand and give to my DM candidates, was: Why would that ever be the case? You train as a group, you dive as a group, no exceptions. I remind my students that EVERYONE fails the dive if we don't act like a group.
Students need to be supervised. Of course, there are some situations in which you may leave a student behind for a second on the surface (CESA) but you should always be able to see/supervise them. One of the ways I prevent students from being left behind like that is to divide CESA up among the divers and perform CESA while ascending on Dive 2 with one student and everyone else makes the normal ascent with the DM. New student on Dive 3, etc. I will start a thread in the instructor forum specifically about this...
I am sorry about your experience and it certainly sounds like poor customer service. I would like to hear the instructors/shops side to get a more holistic account.