Quote from Niles in No Sex Please, We're Skittish
Daphne: I just thought I'd follow your father's advice: a little less science, a little more romance. [As Daphne kisses Niles, she hears a whirring and beeping sound. She looks down to his pants] Daphne: And apparently it's working. Niles: That would be my TestiCool 2000.