All... all kinds of things! [He grunts out that stammered response, because it's hard to put it into words. ...And it feels weird and awkward and wrong to say it with Fenton as the target, rather than Gizmoduck.]

Sure, Gizmoduck saves the day and all. And that's great! But... y'know, he- he... he hogs all the attention! And he relies on all those gizmos for everything... Big man in a suit of armor. Take that off, and what do you have? [A beat, and then he trails on awkwardly.] ...A... brilliant, kind and hard-working scientist who has been nothing but helpful...

[Then he quickly shakes his head dismissively!]

But that's beside the point! You're just- you're too good and too perfect! How's anyone else supposed to feel like you're a hero next to someone like him- er, you?!