Eric Von Zipper....revisited

There is one comment from Von Zipper that I have kept in my memory for all these years. Unfortunately, I cannot remember in which film it first appeared and if it was repeated in other films.

The quote is: (apologizing to other character) "You'll have to excuse me. I work with stupids."

Has this line been scrubbed from the films? I have tried to watch the films when they are shown on TV, but I never hear that line.

Can anybody let me know if the films have had that line edited out, or have I lost my mind, or have I invented this line on my own?

Thanks.