A 54 year old mathmetician left his wife a note that said, "When you get this message, I'll be at the Grand Hotel with my 18 year old secretary."

The wife faxed him at the hotel with the following message, "When you get this your 54 year old wife will be at home with an 18 year old boy toy. Being a mathmetician you know that 18 will go into 54 a whole lot more than 54 will go into 18."