Such rot, Sir. Why, you're the very model of sanity.

5 seconds sound clip from the Batman: Mask of the Phantasm movie soundboard.

You can hear this line at 00:05:29.641 in the Blu-ray version of the movie.

Quote context

[...]

- How many times are we gonna let Batman cross the line?

- I'm sorry, councilman, but you can't blame Batman, for what happened to Chuckie Sol.

- Why not? He's a loose Cannon, Commissioner.

- It's not just my opinion. A lot of people, including the police, I might add, think Batman's as unstable as the crooks he brings in.

- What kind of city are we running when we depend upon the support of a potential madman?

- Such rot, Sir. Why, you're the very model of sanity.

- Oh, by the way, I've pressed your tights and put away your exploding gas balls.

- Thank you, Alfred.

- Might one inquire what this is?

- A piece of windshield from Chuckie Sol's car.

- There's a chemical residue on it... some kind of dense long-chain macro-molecular polymer. Adapt-o-genic, of course.

- Of course. Ahem.

[...]