The danger! Do you ever get claustrophobic? The basic diving courses I&#x27;ve taken made me appreciate normal atmospheric pressure, lack of nitrogen build up and ability to breathe naturally much more than previously :) And that was in <i>open</i> water.<p>I was a pretty fearless kid, but I guess if you get out of the adrenalin habit, or just get old, the fear creeps back in.<p>What&#x27;s your take?