I think it is also important to encourage divers to practice different proceedures they might use in an emergency. When they are not in a panic mode, they can think clearly. I still remember when I had just become an OW diver. I was on a trip in the Bay Islands and went on a deep dive. We were down over 80 feet and another diver started flailing about and kicked my mask off and regulator out of my mouth. I found my regulator first and secured my mask back over my eyes. When we got back to the surface the dive master told me he thought there was going to be an incident, but I handled everything very well. I have Scuba Sciences and the great training by Paul Wagenseller to thank for being prepared for this. I think some instructors spend more time than others on what may seem like useless training. I had to do almost the same thing in my certification dive in Catalina on a steep boulder covered slope, several times. I feel we should never stop training and err on the over training side with new divers. I went on to become a dive master with Scuba Sciences and always stressed practicing emergency proceedures. I am sure we all have stories like this, I just hate to see a diver injured because of panic, lack of training, etc.