A woman is just about to give birth in the hospital when she says to the
doctor, "Doc, do me a favor. Tell me what color the baby is as it's being
born." 
The doctor is understandably a little puzzled at this. "Why
don't you know what color the child is going to be?" 
"Well", says
the woman, "The problem is that I'm a porno actress and the child was
conceived during the making of a film. I have no idea who the father is." 

"OK", says the doctor, "I'll do it for you but it is most
unusual." The baby begins to be born and the doctor says, "Here comes
the head, it seems to have yellow skin and the eyes are slanted. Was one of the
actors Chinese?" 
"Yes, doctor he was.", says the woman. 

"Wait", says the doctor," The chest and arms are out and they
seem to be very dark. Was one of the actors black?"
 "Yes, doctor he
was." "Wait, now the legs are out and they're brown. Was one of the
actors Asian?"
 "Yes, doctor he was." So the doctor pulls the baby
free and gives it the traditional slap on the back. The baby lets out a healthy
"Waaaahh" and starts crying. 
"Oh, thank God for that!", says
the woman, "For a moment there, I expected it to bark!"