Could This Be The Reason?

I once heard a joke that went like this. " 1st Person says to 2nd person could I take your picture? 2nd person says of course you can, but why? 1st person says so that I can put it on the mantle piece to keep the kids away from the fire........" could this be the reason for this: http://entertainment.timesonline.co.uk/tol/arts_and_entertainment/specials/edinburgh/article4513065.ece