Frasier: What sort of an anomaly?
Dr. Gadston: You were clearly mouthing the letters as Frederick spelled the last word, Dr. Crane.
Frasier: I did no such thing!
Dr. Gadston: We have it on the tape.
Frasier: Well, if I did, it certainly wasn't a conscious act. It was like singing along at a concert. You know, I remember being admonished by the ushers for joining in a particularly intense performance of Das Lied von der Erde.