Do you notice that our belly buttons come in either indented ones or protruding ones?
I should know 'cos I have been there treating the little, severed umbilicus cord of my little babies right up to the healing process and eventually, forming the belly buttons. The funny thing is they all favoured their daddy's belly button which is shallow and almost protruding. Meanwhile, I have one very, very deep belly button.
The Chinese said if you have deep belly button, it means you are thrifty and saves a lot. I don't know about that. I got no money. LOL.