THE ORIGINAL METHOD
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.’