We're definitely talking demented.
2 seconds sound clip from Darkwing Duck - Duck Blind (S1E8).
You can hear this line at 00:04:39.847 in the DVD version of the TV Series.
Quote context
[...]
- I am the terror that flaps in the night.
- Happy flapping! Ha-ha-ha-ha!
- Oh! He's using everything but the kitchen sink.
- I am the cold sore that stings your lip?
- We're definitely talking demented.
- Watch it, buster, or I'll punch out your lights.
- Lights? Why, Darkwing, I just flashed on how to get outta here.
- Hey, stop! Darkwing, he's getting away-ay-ay!
[...]