A long time ago at uni my so called friends as exam time approached decided to cheer me up by smiling at me. I have never forgotten as not only did they keep up an inane grin whenever they saw me but they kept up a constant stream of visitors to my room where I was trying to revise who asked me if there was anything I needed, if they could get me a coffee, get me something to eat, sing to me etcetc. It transpired someone had bought a poster which stated "Smile at someone today and drive them mad tomorrow" It works!!!