A husband and wife decided they needed to use certain phrases to indicate
that they wanted to have sex without letting their children in on their sex life.

One day the husband told his five year old daughter, "Go tell your mommy
that daddy needs to type a letter."

The child told her mom what her dad said and her mother responded telling
her young child, "Tell your daddy that he can't type a letter right now
because there's a red ribbon in the typewriter."

The child went back to tell her father the bad news.

A few days later the mom told her, "Tell daddy that he can type that letter now."

The child told her father and came back to her mother and gave the father's
response, "Daddy said never mind with the typewriter, he already wrote the
letter by hand."