Continuity mistake: Just after Niles has run out of Cafe Nervosa, the tip he left on the table keeps vanishing and reappearing between shots.
Continuity mistake: When Niles and Frasier are first talking to one another in Cafe Nervosa, Niles' coffee cup goes from held in his hand to sat on his saucer in an instant.
Answer: In the last episode, they explained that Tossed Salad and Scrambled Eggs is a metaphor for the mixed-up people to whom Frasier dispenses his radio psychiatric advice.