John was sitting outside his local pub one day, enjoying a quiet pint and generally feeling good about himself, when a nun walks by and starts lecturing him on the evils of drinking.
“You should be ashamed of yourself young man! Drinking is a Sin! Alcohol is the blood of the devil!”
Now John gets pretty annoyed about this, and goes on the offensive.
“How do you know this, Sister?”
She replies, “My Mother Superior told me so.”
“But have you ever had a drink yourself? How can you be sure that what you are saying is right?”
“Don’t be ridiculous–of course I have never taken alcohol myself”
“Then let me buy you a drink – if you still believe afterwards that it is evil I will give up drink for life.”
The nun thinks a while, and then she says,
“I’m a nun and I can not be seen drinking alcohol. Why don’t you ask the bartender to put my drink in a teacup, and then I will accept your challenge.”
John goes inside the bar and says to the bartender,
“Another pint for me, and a triple vodka on the rocks.”
He hesitates and then says,
” Could you put the vodka in a teacup?”
The bartender acknowledges his request and smiles.
“No problem, the Sister must be back again!”