A husband wrote the following letter for his wife and left it on the dining room table: To my dear wife. You will surely understand that I have certain needs that you being 54 yrs old, can no longer satisfy. I am very happy with you and I value you as a good wife. Therefore, after reading this letter, I hope that you will not wrongly interpret the fact that I will be spending the evening with my 18 yr old secretary at the comfort inn hotel. Please dont be upset - I shall be home before midnight. When the man came home late that night, he found the following letter on the dining room table: My dear husband. I received your letter and thank you for your honesty about my being 54 yrs old. I would like to take this opportunity to remind you that you are also 54 years old. As you know, I am a math teacher at our local college. I would like to inform you that while you read this, I will be at the Marriott hotel with Michael, one of my students. He is young, virile, and like your secretary, is 18 years old too. As a successful businessman who has an excellent knowledge of maths, you will understand that although it may appear that we are in the same situation, there is one mathematical difference: "18 goes into 54 a lot more times than 54 goes into 18.'. Therefore, I will not be home until sometime tomorrow.