Bizarre Tickle Area?

What's yours?

I'm talking about that tickle area that is only ticklish when it doesn't involve someone taking their finger and softly scratching your sides or something.

I ask only because I had the pedicurist laughing at me yesterday. Normally I'm not ticklish, especially on the feet. If you took a finger and tickled my feet with it you would have no reaction. However take a pumice stone to it (or a loofah sponge) and OMG you can have me in giggles.

My knee caps - they are extremely sensitive. DH threatens to tickle them all the time just to irritate me.

I never used to be ticklish, but lately I seem to have developed a ticklish spot between my toes.

The back of my neck. My stylist always laughs at me, and her partner will sometime even stay to watch.