The Instructions

Wonko the Sane: "I've tried to decorate it nicely to keep the inmates happy, but there's very little one can do. I never go in there now myself. If ever I am tempted, which these days I rarely am, I simply look at the sign written over the door and shy away."
"That one?" said Fenchurch, pointing, rather puzzled, at a blue plaque with some instructions written on it.
"Yes. They are the words that finally turned me into the hermit I have now become. It was quite sudden. I saw them, and I knew what I had to do."
The sign said:
Hold stick near centre of its length. Moisten pointed end in mouth. insert in tooth space, blunt end next to gum. Use gentle in-out motion.
"It seemed to me," said Wonko the sane, "that any civilization that had so far lost its head as to need to include a set of detailed instructions for use in a packet of toothpicks, was no longer a civilization in which I could live and stay sane."

excerpt from Douglas Adam's "So Long and Thanks for All The Fish"