You are a federal agent. You represent the United States Government. Never end a sentence with a preposition.

Agent Flemming (Robert Stack)

9 seconds sound clip from the Beavis and Butt-Head Do America movie soundboard.

You can hear this line at 00:43:19 in the DVD version of the movie.

Quote context

[...]

- Take this scum away.

- I believe I'm supposed to be read my Miranda rights. Now... Whaa!

- I always knew they were no good. Uh, I hate...

- Shut up! You've been harboring two criminal masterminds.

- Chief, you know that guy whose camper they were whackin' off in?

- You are a federal agent. You represent the United States Government. Never end a sentence with a preposition.

- Oh. Uh... You know that guy in whose camper they... I mean, that guy off in whose camper they were whacking?

- That's better. Yes?

- We've run a sample through the national criminal sperm bank and came up with two possible genetic matches for a father. Former M?tley Cr?e roadies turned drifters.

- You were a roadie for M?tley Cr?e?

- Yep. Uh huh huh huh.

[...]