This is an electronic reprint of an article that appeared in NAUI NEWS (Now SOURCES), Mar/Apr. 1989, 39-40. This material is copyrighted and all rights are retained by the author. This material is made available as a service to the diving community by the author and may be distributed for any non-commercial or Not-For-Profit use.
I wish to share with the members of NAUI an incident which occurred to me while I was conducting a NAUI specialty class in Navigation/Search and Recovery. This class was one module of a training program that ultimately leads to certification as a NAUI Master diver. This incident occurred on the second day of training for this particular specialty rating.
The second morning's protocol involved establishing a 100 foot baseline at a depth of 20 - 26 feet. After the students had completed their search-pattern exercises from this baseline, they were told that they would be required to swim the length of the line without their masks.
The exercise was conducted in the following manner: The NAUI divemaster waited with the three students at one end of the 100 foot line. I was on my knees at the starting point a few feet away. One at a time they got on their knees directly in front of me (at least one knee was on the line) and after the appropriate signal removed their mask and gave it to me. I held the mask and waited as they found the line. They had been told to swim with the fingers of one hand encircling the line. After swimming 100 feet to the end of the line, they turned around and swam back to the starting point. As they swam, I was at all times directly above the students with my hand on their tank valve. After swimming the two 100 ft. lengths, the students were given their masks. After the students had replaced and cleared their masks, they were given a handshake. The exercise was repeated until all of the students had done the swim.
The first two students performed this exercise with no difficulty. The third student (who had expressed no vocal concerns about the exercise, as compared to the other two who had expressed a lot of verbal anxiety) knelt in front of me and very tentatively flooded her mask, immediately cleared her mask and violently began shaking her head "no." ( This surprised me: This non-NAUI certified advanced diver had been diving almost two years, had at least five specialty ratings, had more than 40 dives , had had no real difficulty clearing mask or regulator during the previous day's exercises, had been helping others in their non-NAUI basic open water training and had come to me for preparation to become an instructor.)
I signaled "OK?" She responded "OK." I placed my hand on her shoulder and signaled for her to proceed. She gave me the OK and slowly flooded her mask. Her respiration rate by this time was very rapid. After several seconds, she again cleared her mask and looked at me. I signaled "OK?" and she responded "OK." Once again she flooded and cleared her mask and indicated that she was OK! (Her respiration rate was still rapid. I assumed that she realized that she had a problem and was using the multiple mask clearings to get more comfortable.)
Suddenly, she ripped off her mask and handed it to me. As soon as I took it, she spit out her regulator and bolted for the surface. I latched on to her. I attempted to lock my ankles at right angles in an effort to slow her kick. (The divemaster told me later she was kicking furiously) She struck me repeatedly in the face, her fists bouncing off my mask and regulator. (After the incident one of my students pointed out that I had a bloody nose.) At some point, her blows must have ripped her snorkel keeper because I surfaced with only the snorkel in my hand. (My divemaster had retrieved her mask on his ascent with the other students.) I noticed that she was not exhaling. I got scared! I raised my left hand toward her mouth (my intent was to pinch her between the upper and lower jaw to open her mouth). She screamed! (She later told me that she had sensed my hand coming up and thought that I was going for her throat and that that was why she had screamed.) She screamed and fought and kicked for the rest of the ascent.
As soon as we broke the surface, I asked her "What is your name?" She looked at me, as if waking up from a dream, and said nothing. I inflated her b.c. and told her to relax. She whispered her name. The incident was over.
I broke the class for lunch and talked privately with the student. I gave her an opportunity to repeat the exercise. She declined. I then pointed out to her that:
The purpose of this article is to remind everyone, particularly newer instructors, that :
Incidentally, I still strongly believe that divers should be able to function without their masks and this exercise will continue to be part of my training program.
Larry "Harris" Taylor, Ph.D. is a biochemist and scuba instructor at the University of Michigan. He has authored more than 100 scuba related articles. His personal dive library (See Alert Diver, Mar/Apr, 1997, p. 54) is considered by many as one of the best recreational sources of information in North America.
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