Moishe goes to see his Rabbi and says,

"I need your advice. My wife just gave birth to a girl."

"Mazeltov."

"Thank you. Can we name the baby after a relative?"

"According to Jewish custom, you can name a baby after a departed father, mother, brother...."

"But they are all still alive," says Moishe.

"Oh, I'm terribly sorry to hear that," said the Rabbi.