Why can't you tickle yourself?

In the newsletter that just went out, I asked for responses to the question: "Why can't you tickle yourself?", and I asked people to respond in the Forum.

"Acrobat" (who chose not to sign her post, so I won't reveal her true identity) always cracks me up! She responded with three reasons:

A. Your sensory humory nerve is impaired.

B. You can't reach your funny bone.

Her third reason referred to the "Gate Theory" (usually associated with pain). I like the first two reasons a lot (although the question is still very much open for discussion). I disagreed with her third reason; please see the Forum for my reasoning.