oh you mean in the fairy comic? nah, I see Donald as being the kind to crack jokes about Gladstone’s misfortune, even in a situation like that, but ultimately he doesn’t hate him so much he’d want him gone forever- sure, they’re rivals, and Gladstone sure doesn’t make Donald’s life easy, but neither one would want the other to get badly hurt. I mean heck, there’s actually quite a few comics where they’re on the same side and wind up getting along!