Quote from Lilith in Rat Girl
Frasier: Carla, please! Lilith is mourning the loss of a close friend. Carla: What's the big deal? You go find another rat to hook up to your electrodes. Lilith: My research never harmed Whitey in any way. In fact, he had everything a rat could want. If he needed it, I gave it to him. That rat was the envy of others. Frasier: You know, that's true, but I got over it. Lilith: I miss him so much. [brief, spluttering sobs] Frasier: Let it out, darling. Lilith: I am.