Risking sounding petty or coming across like a jackass, Al, there is a difference between being worried about the risks in climbing and, as Bill so adeptly puts it, making sure "the risk analysis machine is always running".
Case in point - I was bouldering the other night absent-mindedly and taking things way too casually, slapped for a sloper but could not control it and came off. I had no idea where I was going to land. Bad mistake - landed on the edge of the pad and rolled my ankle. That was it for the night for me; had to limp home licking my wound and feeling like a total fool. Lucky for me, my ankle was back to normal in 2 days but it could have been uglier.