A woman puts an ad in the paper looking for a man who wouldn't run away at the sight of commitment, who wouldn't hit her, and could fulfill her while making love. Two weeks go by and nothing. Finally one day the door bell rings. She opens the door and sees a no-armed, no-legged man.
She looks at him and asks, "How do you expect to fulfill my wishes?"
He explains, "I have no arms to hit you with and no legs to run away."
Then she says, "And the last part?"
He looks at her and says, "I rang the door bell, didn't I?"