Katherine and Margaret found themselves seated next each other at a
dinner-party and immediately became confidential.
"Molly told me that you told her that secret I told you not to tell
her," whispered Margaret.
"Oh, isn't she a mean thing!" gasped Katherine. "Why, I told her not to
tell you!"
"Well," returned Margaret, "I told her I wouldn't tell you she told
me--so don't tell her I did."