Continuity mistake: After Frasier puts his cherry glass on the table, the amount in the glass changes several times before he picks it up again. (00:09:50)
Continuity mistake: Kenny enters the booth, and Dr. Nora's purse is on the edge of the desk. Immediately in the next shot it's gone. Then it's back. When Kenny leaves it's gone again. (00:10:25)
Continuity mistake: In the scene where Frasier, Martin, and Niles are in the kitchen putting candles on Freddie's birthday cake, you first see the Louis Pasteur cake facing Frasier. The camera pans out and then back in. When it does, the cake has turned around. The camera pans back once more, and the cake is back to its original position.
Roz, a Loan - S6-E9
Continuity mistake: The bag of beauty products changes, one with a logo and one without.
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.