Dancing - I hadn't thought about the difficulty and possibly long delay of learning of a death. I'm reminded of a strange cartoon I saw in a magazine years ago of a skeleton in a bathroom with a foot in the toilet, clearly having gotten stuck there after falling while changing a light bulb. Scrawled on the floor were the final words "I feel so stupid." Hopefully our placebo subjects won't have a lot of heart attacks where they can't be found. Now I'm curious how frequent the RI check-ups are.