We were in Orvietto for a couple days during our honeymoon. When we arrived, my wife sent me out to track down some pizza. Walked into a promising little place and put in my order. Hostess asked if I'd like a glass of wine while I waited. Forgetting I was in Orvietto, I said "Yes, I'll have a glass of your house red wine." She responds, "I'm sorry, we only have white wine." I accepted that instead (it was very good).
So a few minutes later the owner, a scruffy old man, comes out with his lunch and plops down at a table near me and starts eating. I asked him, "Why do you only have white wine?" His response:
"I makeuh da wine. I only makeuh da white wine. You only drinkuh da white wine."
...said with a hint of a smile on his face.
I love Italy!