A father hears his small son kneeling at his bedside saying his prayers. The child says: " "God bless Mommy and Daddy and Grandma. Ta ta, Grandpa"

Next morning the grandfather is found dead. The father shrugs this off as coincidence.

On the following night the father hears the child recite in his prayers: " God bless Mommy and Daddy. Ta ta, Grandma"

The next morning, the grandmother is found dead in bed.

Now the father is terrified. He rushes to a doctor who gives him a full exam and assures him he is in perfect health. Nonetheless, he is on edge all day long.

The father comes home that evening. His wife rushes to him and is obviously terribly upset. She says that she put the child to sleep after he said his prayers and then heard some terrible news.

His wife tells him: " Have you heard the awful news? The milkman dropped dead on our doorstep!"

You forgot a line in the joke ...