You can, in fact, tickle yourself. Or at least I can tickle my feet with my fingernails or a feather or whatever and induce an involuntary jerking away from the

You can, in fact, tickle yourself. Or at least I can tickle my feet with my fingernails or a feather or whatever and induce an involuntary jerking away from the source of the tickling. Perhaps I'm a unique specimen (my mother will be delighted that she was right all along).