Here's the secret of long life after marriage....!!!

A couple was celebrating their golden wedding anniversary. Their domestic tranquillity had long been the talk of the town. "What a peaceful & loving couple!" A local newspaper reporter was inquiring as to the secret of their long and happy marriage.
"Well, it dates back to our honeymoon," explained the man. "We visited the Grand Canyon and took a trip down to the bottom on the canyon by horse.
We hadn't gone too far when my wife's horse stumbled. My wife quietly said, 'That's once'." "We proceeded a little further and the horse stumbled again. Once more my wife quietly said, 'That's twice.' "We hadn't gone a half-mile when the horse stumbled the third time. My wife quietly removed a revolver from her purse and shot the horse dead.
"I started an angry protest over her treatment to the horse, while I was shouting; She looked at me, and quietly said, 'That's once'. " "And we lived happily ever after."

My mother gave my husband a beautiful, framed copy of this joke at our wedding reception. So far, he's only to Once. :D