"It's unpleasantly like being drunk."
"What's so unpleasant about being drunk?"
"You ask a glass of water."
"You know, Ford, it's at times like this, when I'm trapped in a Vogon airlock with a man from Betelgeuse, about to die of asphyxiation in deep space, that I really wish I'd listened to what my mother told me when I was young."
"What did she tell you?"
"I don't know, I didn't listen!"
Both conversations between Arthur Dent and Ford Prefect from The Hitchhiker's Guide to the Galaxy.