So you're saying that the shape of a man's thumbnail changes as a result of being circumcised?I tend to agree with Middle Eastern to a degree in that fom a mans nails I can predict if he is cut or uncut. Usually and I say USUALLY, long thin (not referring to the thickness of the nail but fom one side of the finger to the other) thumb nail indicate an uncut cock and a wide flat thumb nail indicates a cut cock. This is not carved in stone but the majority of the time it works.
Fascinating theory.