Aha! Only someone so dastardly, so despicable, so disdainful of the utterly defenseless would dare perform such a deed.

Darkwing Duck (Jim Cummings)

9 seconds sound clip from Darkwing Duck - Just Us Justice Ducks Part1 (S1E20).

You can hear this line at 00:13:03.283 in the DVD version of the TV Series.

Quote context

[...]

- Oh, no, you don't. You're the lecherous liar known as NegaDuck.

- I beg to differ. You're the erroneous executor of evil known as NegaDuck.

- Ooh... would you cut that out!!

- Well, I guess we'll just have to kill them both.

- Dr. Penham!

- Just kidding.

- Look, it's a fuzzy wuzzy bunny!

- Where?

- Aha! Only someone so dastardly, so despicable, so disdainful of the utterly defenseless would dare perform such a deed.

- Friends, I give you NegaDuck.

- Well, since you put it that way... take this.

- Be careful with that. You'll put someone's eye out. See?

- Darkwing, look out!

[...]