You have more risks than just reg failure though. Losing your line, line snapping, floods, rockfall, silt bank collapse, getting physically stuck, just to name a few. Based on the number of cave divers and the number of cave diver deaths over the past few years I would say your odds of dying on a  cave dive are far, far higher than driving home. I think if you believe that you are more at risk driving then you haven&#x27;t assessed the risks accurately. I speak as an experienced caver with several cave diving friends.