As I flick through a magazine I come across a curious article titled the Invisible Tickler. Curious, I read on.....only to find myself feeling my muscular thighs and calves being tickled. Could it be the invisible tickler? It most certainly is. I must follow the rules though and not move my legs too much. Do I manage it, do you think? Join me to see if I can survive a visit from the Invisible Tickler!