In the public library, a man with his new library card questioned the pretty librarian.

“Do you mean to say,” he asked, “that with this card I may take out any book I want?”

“Yes,” she answered.

“And may I take out record albums, too?”

“Yes, you may.”

“May I take you out?” he ventured.

Drawing herself up to her full height, she replied, “The librarians, sir, are for reference only.”