I really wish I'd listened to what my mother told me...!

"You know," said Arthur, "it's at times like this, when I'm trapped in a Vogon airlock with a man from Betelgeuse, and 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."

"Why, what did she tell you?"

"I don't know, I didn't listen."

- The Hitchhiker's Guide to the Galaxy