There's this nun outside a pub...

[Maxsymuppet]

A Man is just about to walk into a pub when he is accosted by a nun. ' Before you go in think about the effect of drink on your family' she says, 'and what it is doing to your body. Just think about what it is doing to you.'
The man stops, turns to the nun and says 'Have you ever had a drink?'
'No.' She replies. 'Never.'
'Well,' he says, 'Until you have you can't comment. If you try it and find you don't like it fair enough then you can comment, but not before.'
'Alright' says the nun, 'I'll have a drink then.'
'Okay, what will you have?'
'I don't know, what do ladies normally drink?'
'Gin.'
'Alright, I'll have a gin then. But put it in a cup not a glass. That way nobody will know.'
'Okay,' says the man, and goes up to the bar. 'I'll have a pint please, and a gin in a cup.'
And the barman says 'Oh no, that nun isn't outside again is she?'