The most common?
Hmmm.....
🙄
I think I'd have to admit what all the foot people out there would love to hear... because in my own experience the feet have frequently, to the point of almost ALWAYS, been one of the following:
A) The only truly ticklish spot.
B) The worst spot.
C) The only one that cannot be "turned off".
It's always been a case of, "C'mon... I know they're ticklish. If all else fails, go for the feet!" Even in my own case, where none of the above are true, I still have to admit to being relatively ticklish there. I know a lot of people who are extremely ticklish. I know a lot who are hardly at all. I know some who can turn it off, and some who can't. I know people who like being tickled, people who don't mind it, and people who can't stand it!
I don't believe I know anybody whose feet are not ticklish.
-=LadyKilroy=-
P.S.- That STILL doesn't mean feet are my favorite. 😎