When a lady is pregnant, all her friends touch the stomach and saying "congratulations". 
But, none of them come and touch the man's penis and say "Good job". 
Moral of the story: Hard work is never appreciated.

Partners help each other undress before sex. 
However after sex, they always dress on their own. 
Moral of the story: In life, no one helps you once you're screwed.

People do work don't have the money; people have money don't do the work.