Trivia.com
Tickling is necessarily a two-person affair --- It is not possible to tickle yourself
Trivia.com
Pteronophobia is the fear of being tickled by feathers.
Trivia.com
Tickling requires the other --- you can't tickle yourself
Trivia.com
Laughing when being tickled is a defense mechanism kicking into gear, responding to panic and anxiety.
See also
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