This is a very relevant topic on many levels.  It touches on the personal and public, physical and emotional aspects of vulnerability and trust. There are so many variations of transparency at play in as many settings. I like the games idea. Your ideas are unique.  I think I could do the Paper Bag but it would take a lot of introspection to complete the life line. Great post, David Greer! And on the spur of the moment too. :)