Where's the P.O.?

A little boy was waiting for his mother to come out of the grocery store. A man came up and asked if the boy knew where the post office was.

"Sure," the boy said, "just go down this street two blocks and turn right."

"Thank you," the man said. "I'm the new pastor in town. Come to church Sunday and I'll show you how to get to heaven."

The boy laughed. "Are you sure? You don't even know the way to the post office."

(I think the pastor meant he would lead the boy to heaven, IN THE PASTOR'S PANTS!)