After a failed courtship with her lover, Heather wishes revenge, and she sets her sights on her ex-lover's spouse, Diane Lomax. Frasier will make an advance in direction of her in a minute of anger-induced enthusiasm, identical to a scene in an episode with Kate Costas, with Frasier even applying some of the similar insults and quoting a line by Sam Malone to Diane Chambers in Cheers "Are you as turned on as I am?