Arriving home from a shopping trip, a wife was horrified to find her husband in bed with a pretty girl. Just as the wife was about to storm out of the house, her husband called out "Before you go, I want you to hear how all this came about.
"Driving home, I saw this young girl, looking poor and tired. I offered her a lift. She was hungry, so I brought her home and fed her some of the roast you had forgotten about in the fridge. Her shoes were worn out, so I gave her a pair of your shoes that you don’t wear because they are out of fashion. She was cold, so I gave her the new birthday sweater you never wear because the colour doesn’t suit you. Her trousers had holes in them, so I gave her a pair of yours that don’t fit you any more. Then, as this poor girl was about to leave the house, she paused and asked if there was anything else that you don't use any more?
"So here we are!"