This may offend some, but this is my story.
My father was a great story teller. He once told me that when he was young, if you kissed your elbow that you would change sex. He swore that he started life as a girl. Then he kissed his elbow and became a boy. He said he was happier that way so he never tried to kiss it again.
I spent years trying to figure out how to kiss my elbow. Short of dislocating or breaking my arm, I have never physically kissed my elbow.
I leave it to your comments.