You're resorting to one of the oldest, most underhanded devices...
3 seconds sound clip from the Knock on Any Door movie soundboard.
You can hear this line at 01:23:07.498 in the Blu-ray version of the movie.
Quote context
[...]
- Nick couldn't have done it. He was with us!
- That's what you told Mr. Morton over and over again, huh?
- It is?
- What would you say if I reminded you that Negroes are not served at the Cobra Tap?
- Object! Since when aren't Negroes served there or anyplace else on skid row?
- You're resorting to one of the oldest, most underhanded devices...
- You, Mr. Morton, stop it, or you'll be held in contempt.
- I apologize to the court. But there are limits to what I... I apologize.
[...]