If that isn't an insult, I don't know what is.
2 seconds sound clip from the Duck Soup (1933) movie soundboard.
You can hear this line at 00:30:32.773 in the Blu-ray version of the movie.
Quote context
[...]
- Well, this is your opportunity. He won't be here today.
- Positive! I helped Mrs. Teasdale with the invitations.
- Oh.
- His Excellency, Rufus T. Firefly!
- Hail, hail Freedonia, land of the brave and free. (3)
- When you get through with her feet, you can start on mine.
- If that isn't an insult, I don't know what is.
- Gloria, I love you. I realize how lonely you are.
- Can't we go someplace where we can be by ourselves?
- All I can offer you is a roof-us over your head.
- Your Excellency, I really don't know what to say.
- I wouldn't know what to say either if I was in your place.
[...]