I have heard a variation - these myths…
Churchill, when asked how to make a dry martini, replied “I just show the vermouth to the gin.”
“Can you demonstrate?”
Churchill proceeded to retrieve the vermouth and gin from his cabinet.
“Gin, this is vermouth; vermouth, meet gin.”
He replaced the vermouth and poured himself a large glass of gin.
A stormtrooper wanders into the Mos Eisley cantina and orders two martinis.
Wuher looks the stormtrooper up and down, and finally asks, "Um, should you be drinking on the job?"
And the stormtrooper replies, "What, and hit what I'm aiming at?"