I posted early in this thread from the point of view of a passer-by, and stand by my advice, which was basically to be entertaining and brighten people's day. Marion's post depressed me a bit. You could see the whole science of marketing looming. Generosity is no longer just a refreshing piece of human nature, but a response, Pushkin's dog like, that can be counted on and exploited if certain things are done. This is not to knock her ideas. I could write a similar treatise on hitch-hiking. Marketing makes the world go round. But depressing all the same.