The fumes'll mess up the dogs, and don't go more than ten miles an hour or you'll be no use to us.

6 seconds sound clip from the Black Christmas (1974) movie soundboard.

You can hear this line at 00:37:34 in the Blu-ray version of the movie.

Quote context

[...]

- When I tell you, I want you all to assemble on the south edge of the park with your assigned officer.

- Then, we'll just walk through the park.

- Spread out evenly! Don't bunch up.

- There'll be two sets of dogs leading the way. Just spread out and follow them.

- George and Carly... Stay out on the flanks.

- The fumes'll mess up the dogs, and don't go more than ten miles an hour or you'll be no use to us.

- Now if any of you find anything, I want you to send someone out immediately to report it to me.

- Is that clear? Are there any questions?

- Okay, let's go.

- Alligators come through the gate, but goodbye leg if ya get away late.

[...]