I think part of my caution stems from an incident that happend just prior to me taking cavern/intro. A full cave diver that used to hang out with my LDS that I had dove with a couple of times died in one of Florida's caves. I decided to go on with the training anyway telling myself that if I saw any inherent unmanagable risks to cave diving, I'd go back to lakes and reefs. Fortunately, everything I learned indicated that cave diving could be done safely provided you never shave off those hairs on the back of your neck.