freediver:Well then, perhaps, the instructor (or anyone) should be in close proximity to the student/victim to be able to evalute their ability to say exactly what is needed to be said during the time of a crisis! To all of those who say "YELL PIZZA", are you truly saying that it takes practice to be able to yell what is necessary in the event of an emergency??
Please tell me what is exactly suppose to be said during an actual in water emergency from the stand point of the diver(s) in need...and any diver responding to assist?