I've been watching quite a few episodes recently, and have some interesting observations.
In Adopt-a-Con, Drake Mallard unknowlingly sings up for the Adopt-a-Con program, finding out about it within minutes of actually doing it, and shortly afterwards has to take care of Tuskernini. It seems as though he wasn't aware of the program, but at one point after Darkwing encounters Tuskernini (disguised as Megavolt) robbing a bank and gets to the Mallard household quickly, the judge tells Darkwing that he had told him to stay away from Tuskernini, I would assume because of the adopt-a-con program. This hadn't been seen in the episode, and it seems like Darkwing didn't know about Adopt-a-Con until he'd adopted his con... When would the judge have told him to stay away from him?
In The Battle of the Brain Teasers, Honker, Launchpad, and Gosalyn wear special helmets when entering the site where the hats land. When one takes over Honkers body, he tells the others that the can't take over rthe other oens until they get their helmets off... It would have been better if the other two tried to take over their bodies when wearing helmets, and figruing out that they needed to have their hats off. Also, I wodner if Launchpad wore his regular hat underneath the helmet. There are episodes where Launchpad wears his hat under a different hat (one example is the one where Tuskernini thinkjs Launchpad is Darkwing... At one point Launchpad dresses as Darkwing, wearing his aviator cap under the Darkwing Duck hat), and in the Ducktales episode Double-O-Duck Launchpad wears a wig on top of his hat (Gyro Gearloose also does the same thing).
In The Hauntign of Mr. Banana Brain, when Quackerjack gets sucked into his box, his clothes, including his mask (all this tiem I thought it was just a hat) comes off... And yet later on, when he is forced to dress normal, he wears his mask along with his buisness suit. I guess he wasn't punished enough (though I guess it would be hard to recognise him without it).
In the few episodes I recently saw with Gizmoduck, it seems like he acts as if he's only a robot, as opposed to a duck in a robotic suit.