As he’s sipping, a nun walks by and scolds him: “How can you pollute your soul with the Devil’s drink?”
The man replies, “It’s not the Devil, it’s just whiskey.”
The nun argues it’s wicked and sinful, but admits she’s never actually tasted whiskey, only heard from others how evil it is.
After some back and forth, the nun finally says, “Alright… if I had just a sip, I’d understand better. But I can’t be seen drinking out here. Could you order me one in a teacup?”
The man nods, heads back inside, and says to the barman: “Two whiskeys, but put one in a teacup, please.”
The barman slams the counter and yells: “Is that nun here AGAIN?!”