A man and his wife are awakened at 3 o'clock in the morning by a loud pounding on the door. The man gets up and goes to the door where a drunken stranger standing in a pouring down rain is asking for a push.

"Not a chance" says the husband - "It's three o'clock in the morning!" 

He slams the door and returns to bed. 

"Who was it?" asks his wife. 

"Just a drunken stranger asking for a push" he answers. 

"Did you help him?" she asks. 

"NO, I didn't - it's three in the morning and it's pouring down out there!" 

"Well, you've got a short memory" says his wife. "Can't you remember about three months ago when we broke down on holiday and those two guys helped us? I think you should help him." 

The man does as he is told and gets dressed and goes out into the pounding rain and calls out into the dark: "Hello, are you still there?" 

"Yes," comes the answer. 

"Do you still want a push?" calls out the husband. 

"Yes, please!" comes the reply from the dark. 

"Where are you?" asks the husband. 

"Over here, on the swing" the drunk replies.