I love this one. I hope others will too. It came to me in an email.
The little old couple walked slowly into McDonalds that cold winter evening. They looked out of place amidst the young families and young couples eating there that night. Some of the customers looked admiringly at them, thinking, "Look, there is a couple who has been in love most their lives, 60 years or more!"
As the woman took a table near the back, the little old man walked right up to the cash register, placed his order with no hesitation, paid for their meal and carried the tray to the table... one hamburger, one order of french fries, and one drink.
The little old man unwrapped the plain hamburger and carefully cut it in half, then carefully counted out the french fries, dividing them into two piles. He took a sip of the drink, his wife took a sip and then set the cup down between them.
As the man began to eat his few bites of hamburger the crowd began to get restless, now thinking, "That poor old couple. All they can afford is one meal for the two of them."
As the man began to eat his french fries one young man stood and came over to the old couple's table. He politely offered to buy another meal for the old couple to eat.
The old man replied that they were just fine - they were used to sharing everything.
The young man noticed that the little old lady hadn't eaten a bite, but was just occasionally taking her turn sipping the drink. Again, the young man offered to let him buy them something more to eat.
This time, the little old lady explained that no, they were used to sharing everything together. As the little old man finished eating and was wiping his face with a napkin the young man could stand it no longer.
He finally asked the little old lady. "Ma'am, why aren't you eating. You said that you share everything... what are waiting for?"
She looked at him sweetly and answered, "the teeth."