I loved this little story from a Zambian friend on Facebook!

A Zambian gentleman left this note for his wife:

My dear wife Misozi,

You will surely understand that I have certain needs, that you being 54 years old can no longer satisfy but I must say I’m very happy with you and I value you as a good wife. 
Therefore, after reading this letter, I hope you won’t wrongly interpret the fact that I’ll be spending the evening with my 18 year old secretary at The Comfort Inn Hotel. Please don’t be upset – I shall be home before midnight.

With love,
Husband Makasa

When the man went home late that night he found the following letter on the bedroom table:

My dear husband Makasa,

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 yrs old. As you know I’m a maths teacher at our local college. I would like to inform you that while you are reading this, I will be at the Marriott Hotel with Michael, one of my students. He is young, virile, and like your secretary he is also 18 years old. 
As a successful businessman who has an excellent knowledge of maths, you will understand that although it may appear we’re in the same situation, there’s 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!

Love always,
Your wife Misozi.