As child,I was extremely ticklish,just about everywhere!!! I would giggle and laugh almost till I was sick!!! But it was oh! SO much fun!!!! Nowadays,I am not ticklish at all,not even a tiny teeny bit! It really annoys anyone who likes to tickle people as they get no reaction whatsoever! I think this is even funnier for me, than when I WAS so ticklish!!!
My most ticklish spot is the roof of my mouth. An oral surgeon got quite testy with me as I could not control my actions. Despite the fact that people are not supposed to be able to tickle themselves, I can accidentally tickle myself with my tongue.
I am extremely ticklish. I was tickled and abused as a child. I HATE being tickled. I feel it is an abuse as it renders the victim helpless to defend themselves. As Rice says "tickling can be a cover for other behaviour".