John was sitting outside his local pub one day, enjoying a quiet pint and generally feeling good about himself, when a nun suddenly appears at his table and starts decrying the evils of drink.
- 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?
- 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
- How could I, a Nun, sit outside this public house drinking?!
- I'll get the barman to put it in a teacup for you, then no one will ever know.
The Nun reluctantly agrees, so John goes inside to the bar.
- Another pint for me, and a triple vodka on the rocks - then he lowers his voice and says to the barman:
- and could you put the vodka in a teacup?
- Oh no! It's not that Nun again is it?