A college math professor and his wife are
both 60 years old.
One evening the wife comes home and
finds a note from her husband.
It says: “My dear, now that you are 60 years old,
there are some things you no longer do for me.
I am at the Holiday Inn with my 20-year-old student.
Don’t bother waiting up for me.”
He returns home late that night to find a note from his
wife: “You, my dear, are also 60 years old and there are
also things I need that you’re not giving me. So,
I am at the Motel 6 with one of your 20-year-old students.
Being a math professor, I’m sure you know that 20 goes
into 60 way more than 60 goes into 20. So, don’t YOU wait up for ME.”