Reginald in his wildest lapses into veracity never admits to being more than twenty-two.

 From The Complete Saki.  

At the same moment I became aware that old Colonel Mendoza was essaying to tell his classic story of how he introduced golf into India, and that Reginald was in dangerous proximity.  There are occasions when Reginald is caviare to the Colonel.

“When I was at Poona in ’76—”

“My dear Colonel,” purred Reginald, “fancy admitting such a thing! Such a give-away for one’s age! I wouldn't admit being on this planet in ’76.” (Reginald in his wildest lapses into veracity never admits to being more than twenty-two. )