Viral Videos - Why can't you tickle yourself?

>only people with schizophrenia can tickle themselves
>I can tickle myself in some places
>I'm in the age range where schizophrenia typically starts showing its head

I don't know about anyone else, but I just don't believe in science unless it's presented to me by a man with gelled and dyed hair and ear studs.

Bill Nye CALLS himself the science guy and wears a lab coat. You think a real scientist would work so hard to keep up the appearance? Keep it real yo. Science learnin' be from the streets.