Hey! No fair! You're messing with the mighty mallard.
4 seconds sound clip from Darkwing Duck - Life, the Negaverse and Everything (S1E35).
You can hear this line at 00:12:20.687 in the DVD version of the TV Series.
Quote context
[...]
- What's going on? Where am I?
- You guys are gonna be sorry you messed with the mighty mallard.
- OK, OK, we're sorry we messed with the mighty mallard. Just put the gun down.
- Yeah, yeah, yeah. Most would rather surrender than fight Darkwing Duck.
- Get him!
- Hey! No fair! You're messing with the mighty mallard.
- You sure this is the right guy?
- When I get through with you you're gonna wish Negaduck was duck enough to do his own dirty deeds.
- No, no, no, no! We're not working for Negaduck. We're against Negaduck.
- We didn't kidnap you. We rescued you.
[...]