- Just a minute. How can you be so sure?
- Easy. I never make mistakes.

Darkwing Duck (Jim Cummings)

6 seconds sound clip from Darkwing Duck - Beauty and the Beet (S1E3).

You can hear this line at 00:09:52.200 in the DVD version of the TV Series.

Quote context

[...]

- That's when I, Darkwing Duck, the supersleuth with a mind as sharp as hedge clippers, entered the case.

- Gee, I wonder if these will require a lot of watering.

- Ah, Darkwing Duck, I'm Dr. Rhoda Dendron. Can I do anything to help?

- Not unless you have a rake handy.

- Oh, this is terrible.

- Mm, it's not so bad. However, it could use a little ketchup.

- You think Dr. Bushroot did it, don't you?

- In a word, yes. In two words, most certainly. In three words...

- Just a minute. How can you be so sure?

- Easy. I never make mistakes.

- King me.

- Do you really think he'll come after me next?

- Certainly! It's a classic case of revenge.

- And besides, all good supersleuths know a criminal always returns to the scene of the crime.

- There. Let's see that big begonia try to get through this! Ha!

[...]