Tune in at the 5-minute point.
Principal Horn: "I'm SO sorry, sir. Made a domino there, I'm afraid. I'm terribly sorry."
Conductor: "Disgraceful, disgraceful incompetence. Do it again."
Principal Horn: "I'm sorry sir, bit of trouble with our lip."
Conductor: "Don't give me any of your lip!"
Hattip to Bruce of Horn Matters for bringing this gem to my attention.