At a dinner party, several of the guests were arguing 
whether men or women were more trustworthy. "No woman," 
said one man, scornfully, "can keep a secret." 

"I don't know about that," huffily answered a woman guest. 
"I have kept my age a secret since I was twenty-one." 

"You'll let it out some day," the man insisted. 

"I hardly think so!" responded the lady. "When a woman has 
kept a secret for twenty-seven years, she can keep it
forever."