Father walking past his young son's bedroom overhears him saying his prayers. "God bless mummy, god bless daddy, god bless grandma, bye-bye grandpa"
He thinks that's a bit strange but thinks nothing more until the next day when his wife rings him at work and tells him the grandpa had just died.
Two weeks later he's walking past his son's bedroom again and hears his prayers. "God bless mummy, god bless daddy, goodbye grandma."
He starts to think his son might be some how connected to the man upstairs, but shakes his head and forgets all about it.
Next day he gets a frantic call from his wife, grandma has just died. Now he really is thinking his son is connected but months go by and nothing happens like it again.
Then one night he's walking down the hall and he hears "God bless mummy, goodbye daddy" Well, he totally freaks, locks himself in the bathroom for hours so nothing can happen to him, sneaks off to work early next morning to beat the traffic in case of a car accident, locks himself in his office all day so no one can get to him, and finally at the end of the day when nothing has happened to him he begins to relax.
Gets home and tells the wife what a terrible day he's had. "You've had a bad day!!" she yells, "What about me, I open the back door this morning and there's our dear milkman dead on the steps!!"