Ask for directions

A driver pulled up beside a rundown farmhouse. He got out and
knocked at the door. A very old woman answered the door, and
he asked her for directions to Des Moines.
"Don't know," the woman said.
He got back in his car and pulled away. Then he heard voices.
He looked in his rearview mirror and saw the woman and an
equally old man waving for him to come back. So he made a U-
turn and drove up to them.
"This is my husband," the old woman said. "He doesn't know
how to get to Des Moines either."