Simple arithmetic

A little after they both retired, a sixty-something couple decided to take an around-the-world cruise. A few days out they decided that they'd have some fun. They'd each go out and pick up a twenty-something to see how it goes. So at the end o the evening, the guy is barely able to walk. He finally gets to their stateroom and staggers into it ready to lie down and sleep til the next week. He's exhausted! He looks over and notices that his wife looks wonderful. All fresh and perky and hardly mussed at all. He looks at her and asks, "What happened?" She says, "What do you mean, dear". He says, "You're all fresh and rarin' to go and I'm totally exhausted and just want to go to sleep." She say, "Why, honey, it's just simple arithmetic. Twenty can go into sixty three times, but sixty can't go into twenty even once!."

​mercy