One day, our child asked us the question "What's the secret of your long marriage?" "Oh," I replied, "It's all about perseverance. On our honeymoon, we went to the Grand Canyon and rode on mules down the trail. Well, your mother's mule bucked her off, and she fell on the ground. She just yelled, 'That's ONE!' and got right back on. A couple minutes, the mule did it again, and she yelled, 'That's TWO!' and got right back on. When the mule did it a third time, she yelled, 'That's THREE!' and she took out a gun and shot the mule dead." "How does that relate to a long marriage?", said our child. I replied, "Well, I told her that was no way to treat a mule, and she looked at me and said 'That's ONE!'"