A young lady with a touch of hay fever took two handkerchiefs with her to the dinner party, one in her purse and the spare she kept in her bosom.
After dinner she began rummaging in her bosom for the fresh handkerchief, but it stubbornly refused to be found.
To left and to right she searched: until she realised suddenly that conversation around her had ceased and everyone was watching her in fascination. Flustered, she murmured,
“I know I had two when I came.”