Dilbert says into the telephone, "Hello, is this the library reference desk?" A voice answers, "Yes." Dilbert asks, "What's the average running speed of the Tazmanian Boola-Boola dog?" The librarian replies, "8.3 miles per hour." Dilbert looks at the phone and says, "I can't believe she knew that." The librarian says, "And you have something stuck in your teeth."